Question

define groups in the modern periodic table. How do valency atomic size and metallic character vary in a group ​

Answer 1

Explanation:

Group : Verical columns in the modern periodic table are known as 'Groups'. There are

groups.

Valency remain same in a group

Atomic size increases from to P to bottom in a group.

Metallic character also increases from top to bottom in a group.

(b) Atomic number

Electric configuration

It is semi-metal or metalloid

Reason - It exibits some properties of metals and some properties of non-metals.

Answer 2

QUESTION

define groups in the modern periodic table. How do valency atomic size and metallic character vary in a group?

ANSWER

Answered 7 months, 1 week ago

(a) Group : Verical columns in the modern periodic table are known as 'Groups'. There are

18 valency groups.

•Valency remain same in a group

•Atomic size increases from to P to bottom in a group.

•Metallic character also increases from top to bottom in a group.

(b) Atomic number=14

Electric configuration

=2 8 4

=K L M

It is semi-metal or metalloid

Reason - It exibits some properties of metals and some properties of non-metals.

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