3 years ago

Why is the atomic mass of most elements not a whole number?

1 answer:

Crank3 years ago

3 0

The atomic mass is the average of the isotopes of the element meaning most averages of isotopes will not be whole numbers

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Oxygen is a __________ and nitrogen is a __________. metalloid, metalloid nonmetal, metal nonmetal, nonmetal nonmetal, metalloid

Anna35 [415]

Answer:

"nonmetal, nonmetal"

Explanation:

Oxygen is a non metal and Nitrogen is a non metal. It is 8th element of the periodic table. It is located in period 2 and group 16.

Nitrogen lies at the group 15 of the periodic table. Its atomic no is 7. Its valency is 2.

Hence, the correct option is (c) "nonmetal, nonmetal".

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3 years ago

When one of the atoms involved in a covalent bond has a much higher electronegativity than the other atom, what type of bond res

ICE Princess25 [194]

If electronegativity difference between atoms is much higher then they form ionic bond.

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4 years ago

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qwelly [4]

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Snowcat [4.5K]

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3 years ago

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SVETLANKA909090 [29]

The peaks are there where the centre of the concentric circles lie. (Not circles exactly)

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4 years ago