where on the periodic table are noble gases found?

Answers

Answer 1

Answer:

The farthest to the right of the Periodic Table. They have 8 valence electrons. Some Noble gases are Helium, Neon, and Argon.

Related Questions

relative to electrons and electron states, what does each of the four quantum numbers specify

Answers

Answer:

(n, l, m sub l, m sub s)

N: principle quantum number (1,2,3,4,etc)

l: angular momentum quantum number, the shape (l has to be at least 1 less than n, but can be 0 depending on n)

M sub l: magnetic quantum number (l determines this number)

M sub s: spin quantum number (can only ever be 1/2 or -1/2)

Explanation:

The principle, azimuthal, magnetic, and spin quantum numbers specify the principle shell, the shape of the orbital, the number of orbitals, and electron spin respectively.

What are the quantum numbers?

The set of numbers that describes the position and energy of the electron are called quantum numbers. Four quantum numbers are principal, azimuthal, magnetic, and spin quantum numbers.

Principal quantum numbers (n) designate the principal electron shell of the atom and the most probable distance between the nucleus and the electrons. A larger value of the principal quantum number indicates a large distance between the electron and the nucleus.

The azimuthal quantum number (l) describes the shape of an orbital in which an electron is present. Its value is equal to the total number of angular nodes in that orbital.

The magnetic quantum number describes the total number of orbitals in a subshell and the orientation of these orbitals. The value of the spin quantum number (s) offers the direction in which the electron is spinning and it has only two possible values +½ and -½.

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what term is used to describe alkaline hydrolysis of fats and oils

Answers

Answer:

Saponification

Explanation:

When treated with a base such as NaOH, the ester is transformed back to alcohol and the sodium salt of carboxylic acid. Saponification is the name given to the reaction since it is utilized in the production of soap.

Which of the following molecules contains only single bonds?
(A)CH3CH2COOH
(B) CH3COCH3
(C) HCN
(D)C2H6
(E) CO2

Answers

Answer:

D) C2H6

Explanation:

All the other molecules contain double (or triple) bonds except for C2H6.

D. Ethane is an organic chemical compound with chemical formula C ₂H ₆. At standard temperature and pressure, ethane is a colorless, odourless gas. Like many hydrocarbons, ethane is isolated on an industrial scale from natural gas and as a petrochemical by-product of petroleum refinin

help me plsss yall??????

Answers

Answer:

First one answer is physical and other remaning chemical

Answer:

Hydrogen is a colorless, tasteless, and odorless gas.

physical

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Hydrogen is very combustible in the presence of oxygen.

chemical

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Hydrogen is very reactive with most elements.

chemical

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Hydrogen is the least dense of all elements.

physical

carbon cycle carbon cycle

Answers

Carbon is found in various forms on the Earth.It occurs in the elemental form as diamond and graphite, in the combined state as carbon dioxide, carbonate and bicarbonate salts in various minerals, while all biotic factors are based on carbon-containing molecules like carbohydrates, proteins, fats, nucleic acids and vitamins. The endoskeletons and exoskeletons of various animals are also formed from carbonate salts. Carbon is incorporated into life-forms through the process of photosynthesis which is performed in the presence of Sunlight by all life-forms that contain chlorophyll.Photosynthesis converts CO2 from the atmosphere or dissolved in water into glucose molecules.These glucose molecules are either converted into other substances or used to provide energy for the synthesis of other biologically important molecules.The utilisation of glucose to provide energy to living things involves respiration in which oxygen may or may not be used to convert glucose back to carbon dioxide.This CO2 goes back into the atmosphere.This is the broad outline of carbon cycle.

Hope you could get an idea from here.

Doubt clarification - use comment section.

Ill give brainlest to the one who answers right.

Answers

the answer would be h2o

Which of the following particles are found in the nucleus of an atom? (Select all that apply).electronsprotonsneutronscompounds

Answers

Answer:

protons and neutrons

Explanation:

Neutrons and protons are the particles that are found in the nucleus of an atom.

What are protons and neutrons?

Protons and neutrons are subatomic particles. They are present in the nucleus of an atom and constitute most of the mass of the atom. There are three kinds of subatomic particles that are present in an atom.

These are -

Electrons: Electrons are negatively charged particles. These are present in the atomic shells of the atom. The number of electrons in the last shell of the atom constitutes the valency of the atom. Protons: Protons are positively charged particles. These are present in the nucleus of the atom.Neutrons: Neutrons are neutral molecules with no charge. These are also present in the nucleus of the atom.

Since most of the mass of the atom, in the form of protons and neutrons, is present in the nucleus, the mass number is denoted as the sum of the number of protons and neutrons. Protons and neutrons together are sometimes also called nucleons.

Therefore, neutrons and protons are present in the nucleus of an atom.

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Can you please state full question also more context about the homework please

Hòa tan hoàn toàn 1,93 gam hỗn hợp 2 kim loại Fe và Al vào dd HCl dư, sau phản ứng thu được m gam muối và 1,456 lít khí H2 ở đktc. Giá trị của m là:

Answers

Answer:

Sorry pal! Didn't understand your language.

Explanation:

Someone pls help me I will make you brain

Answers

Answer:

human migration

Explanation:

Answer:

I think its D

Explanation:

in an oxidation-reduction reaction, how is the reducing agent changed?

Answers

Explanation: The additional terminology comes from the definition that, within redox processes, a reductant transfers electrons to an oxidant; hence, the reductant (reducing agent) loses electrons, so is oxidized, while the oxidant (oxidizing agent) gains electrons, so is reduced.

In an oxidation-reduction reaction, the reducing agent loses electrons and loses potential energy, Therefore, option (C) is correct.

What is a reducing agent?

A substance that loses its electrons in a redox reaction to other substances and gets oxidized is called a reducing agent. A reducing agent is one of the reactants which reduces the other reactant by donating the electrons to the reactant of an oxidation-reduction reaction.

If the reducing agent can't pass electrons to another reactant in a reaction, then the reduction process does not occur and the reaction cannot proceed.

In redox reactions, when an electron loses potential energy as a result of the transfer and energy is released. Electrons with more potential energy are associated with less electronegative atoms and less potential energy is associated with a more electronegative atom (such as O).

Therefore, the reducing agent loses electrons and loses potential energy in a redox reaction.

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Your question is incomplete, but probably the complete question was,

In an oxidation-reduction reaction, how is the reducing agent changed?

(A) it gains electrons and gains potential energy

B) it gains electrons and loses potential energy

what is the wavelength of microwaves if the frequency is 2.45x 10^9 HZ?

Answers

Answer: 1.22 × 10⁻¹ m

Explanation:

Wavelength = Speed of Light ÷ Frequency

= (2.99 × 10⁸ m/s) ÷ ( 2.45 × 10⁹ /s)

= 1.22 × 10⁻¹ m

The wavelength of a light of frequency 2.45 × 10⁹ /s is 1.22 × 10⁻¹ m.

Notes:

Hz ≡ /s

Disease caused by virus are more dangerous.Why?

Answers

Answer:

Explanation:

1. Virus's are hard to detect because of their simple construction.

2. Some mutate very easily.

3. It is hard to isolate the virus and kill it without doing damage to the host.

write down ten laboratory safety rules

Answers

laboratory safety rules:

~Avoid wye contact with all chemics

~ Avoid skin contact with all chemicals

~Always wear safety glasses

~Don't eat in the lab

~Don't drink anything in the lab

~Avoid wearing jewellery

~Don't taste or sniff any chemicals

~Kn0w emergency exit routes

~Never leave containers of chemicals open

~Avoid distracting anyone else working in the lab

Hope this helped you- have a good day bro cya)

1. Follow the instructions

2. Know the Location of Safety Equipment

3. Don't Eat or Drink in the Laboratory

4. Don't Taste or Sniff Chemicals

5. Don't Play Mad Scientist in the Laboratory

6. Dispose of Lab Waste Properly

7. Don't Experiment on Yourself

8. Leave Experiments at the Lab

9. Know What to Do With Lab Accidents

10. Dress for the Lab

which of the following atoms is most likely to bond with another atom?

Answers

Answer:

c. chlorine, with an outer electron shell filled with 7 of a possible 8 electrons

Explanation:

Hope this helps!

The structure in the option A has 7 electrons in the outer shell of its electronic configuration , is unstable and so is most likely to form bond with another atom.

What is electronic configuration ?

Electrons are arranged in various shells around the nucleus , this arrangement is called electronic structure or configuration.

Each shell can occupy certain fixed number of electrons.

Beside Option A , all the other configurations show stable structures as the last shell has eight electrons and are stable according to the octet rule.

ionic=non-metal+ metal

ex: F+Ca

covalent sharing e^- no true charges

covalent= non-metal+ non-metal

ex: F+P

( my notes)

any atom is most stable when it’s outermost energy level contains

Answers

Explanation:

Atoms are at their most stable when their outermost energy level is either empty of electrons or filled with electrons. Sodium atoms have 11 electrons. Two of these are in the lowest energy level, eight are in the second energy level and then one electron is in the third energy level.

Any atom is most stable when it’s outermost energy level contains eight electrons.

What is an atom?

An atom is defined as the smallest unit of matter which forms an element. Every form of matter whether solid,liquid , gas consists of atoms . Each atom has a nucleus which is composed of protons and neutrons and shells in which the electrons revolve.

The protons are positively charged and neutrons are neutral and hence the nucleus is positively charged. The electrons which revolve around the nucleus are negatively charged and hence the atom as a whole is neutral and stable due to presence of oppositely charged particles.

Atoms of the same element are similar as they have number of sub- atomic particles which on combination do not alter the chemical properties of the substances.

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