Chemistry, asked by cimitptu, 5 hours ago

amswer only if your know please

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Answered by smitharavindranath31

1

Answer:

a) thallium

b) boron

c) 3 electrons are present in the outermost shell

d) BCl3

e) less metallic.because on moving towards the right in periodic table metallic characters decreases

Explanation:

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