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3 years ago

Which gases in the following list exist as separate atoms: hydrogen, helium, nitrogen, oxygen, neon.

Chemistry

2 answers:

iris [78.8K]3 years ago

6 0

helium and neon ( answer C)

lbvjy [14]3 years ago

6 0

The answer is C tell me if I was wrong

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Write the ground-state electron configuration for the chloride ion.You may write either the full or condensed electron configura

dalvyx [7]

Answer:

$1s^22s^22p^63s^23p^6$

Explanation:

Chlorine is the element of group 17 and third period. The atomic number of chlorine is 17 and the symbol of the element is Cl.

The electronic configuration of the element chlorine is:-

$1s^22s^22p^63s^23p^5$

Chloride ion is formed when chlorine atom gain one more electron. So, the ground-state electron configuration for the chloride ion is:-

$1s^22s^22p^63s^23p^6$

8 0

3 years ago

Please help will give 30 points.

vredina [299]

Answer:

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Explanation:

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3 years ago

An atom of Iron has at least three different isotopes. What is the difference between an isotope of 55Fe and an isotope of 58Fe?

11Alexandr11 [23.1K]

The isotopes 55Fe and 58Fe are both Iron, but have a different atomic mass due to the added number of neutrons. Both isotopes have 26 protons, but 55Fe has more neutrons.

6 0

3 years ago

Calcium hydrogen sulphite cress cross<br>

alexdok [17]

Answer:

Ca Hso4 ×

Explanation:

Because i did whT you said

3 0

3 years ago

What type(s) of intermolecular forces are expected between ch3ch2ch2ch2oh molecules?

12345 [234]

Answer : Hydrogen-bonding, Dipole-dipole attraction and London-dispersion force.

Explanation :

The given molecule is $CH_3CH_2CH_2CH_2OH$ .

Three types of inter-molecular forces are present in this molecule which are Hydrogen-bonding, Dipole-dipole attraction and London-dispersion force.

Hydrogen-bonding : when the partial positive end of hydrogen is bonded with the partial negative end of another molecule like, oxygen, nitrogen, etc.

Dipole-dipole attraction : When the partial positively charged part of the molecule is interact with the partial negatively charged part of the molecule. For example : In case of HCl.

London-dispersion force : This force is present in all type of molecule whether it is a polar or non-polar, ionic or covalent. For example : In case of Br-Br , F-F, etc

Hydrogen-bonding is present between the oxygen and hydrogen molecule.

Dipole-dipole forces is present between the carbon and oxygen molecule.

London-dispersion forces is present between the carbon and carbon molecule.

5 0

3 years ago

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