Question

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cm here nd ansrr my Q""stn!!!___
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Answer 1

$\huge{\mathfrak{HEYA\:MATE\:!!}}$

1.

modern periodic table - atomic number

vertical column - groups

halogen - group 17

smallest period - period 2.

2.

Eka silicon - germanium

eka boron - scandium

eka aluminum - gallium

3.

s block elements - groups 1 & 2

p block elements - group 13 to 18

d block elements - groups 3 to 12

f block elements - lanthanides and actinides

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