Question

the atomic number of L I and Be is 3 and 4 respectively they belong to the same period

A)which one would have smaller atomic size
B)which one would be more electropositive
C)to which group would it belong​

Answer 1

Answer:

Be will be of smaller size as size along the period decreses as Z factor increses.

More electropositive will be Be

Li belong to group 1 and Be belongs to group 2.

Explanation:

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Answer 2

hey mate ,

Li - 3 - 2,1

Be - 4- 2,2

A) Be would have smaller atomic size , As while going left to right in a period the size decreases

B) Li is more electropositive as in period whole going left to right electropositive character decreases

C) Li belongs to group 1 as it's valence shell is 1

Be belongs to group 2 as it's valence shell is 2

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