Chemistry, asked by champu8539, 1 year ago

The atomic number of beryllium (Be) is 4, and the atomic number of barium (Ba) is 56. Which comparison is best supported by this information

Answers

Answered by dharun1
2
We can find the similarities by two ways :
1. By their electronic configuration.
Beryllium : 2,2.( valency =2)
Barium:2,8,8,18,18,2.(valency=2)
As the valency is same therefore they should be in same group of modern periodic table. Theory are in the 2nd group of modern periodic table therefore they are alkali metals.
2. By finding their group in modern periodic table. As their group is 2nd in the modern periodic table therefore they have same valency that is 2.

The comparison of their valence electrons and their valency is supported the best.

In this way we can find similarities between beryllium and barium.
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