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ololo11 [35]
3 years ago
9

I need help plz with the first question plz

Chemistry
1 answer:
Cloud [144]3 years ago
7 0
Ok so put it in order
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Which elements are out of order in terms of atomic mass. co,Ni or Li,be or I,xe​
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Answer:

The pair co,Ni is out of order in terms of atomic mass

Explanation:

For co,Ni

Atomic mass of Co = 58.9331 u

Atomic mass of Ni = 58.6934

For Li,be

Atomic mass of Li = 6.941 u

Atomic mass of  be = 9.012182 u

For I,xe

Atomic mass of I =  126.90447 u

Atomic mass of Xe = 131.293 u

Hence, the pair co,Ni is out of order in terms of atomic mass

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1. The most basic units of any element are its
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The atom

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