Question

Referring only to a periodic table, give the number of covalent bonds expected for each of...

Referring only to a periodic table, give the number of covalent bonds expected for each of these representative elements.

(a)    At


(b)    Te


(c)    Cl


(d)    I


(e)    Kr

Science   Chemistry   
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Homework Answers

Answer #1

a)

At is in group 7A

So, it needs 1 more electrons to complete octet

SO, It can form 1 covalent bond

b)

Te is in group 6A

So, it needs 2 more electrons to complete octet

SO, It can form 2 covalent bond

c)

Cl is in group 7A

So, it needs 1 more electrons to complete octet

SO, It can form 1 covalent bond

d)

I is in group 7A

So, it needs 1 more electrons to complete octet

SO, It can form 1 covalent bond

e)

Kr is a noble gas

It already has its octet complete

So, it will not form any covalent bond

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