Question

name the metalliod in the third period?
name the group to which sodium and lithium belong?
name the group to which magnesium and calcium belong?​

Answer 1

1. The metalloid in third period is Silicon...

2. Group 1A (or IA) of the periodic table are the alkali metals: hydrogen (H), lithium (Li), sodium (Na), potassium (K), rubidium (Rb), cesium (Cs), and francium (Fr)...

3. Group 2A — The Alkaline Earth Metals. Group 2A (or IIA) of the periodic table are the alkaline earth metals: beryllium (Be), magnesium (Mg), calcium (Ca), strontium (Sr), barium (Ba), and radium (Ra)...

Hope this helps you, Have a good day ahead ♥️✅✌

Answer 2

$\sf \bf \huge {\boxed {\mathbb {QUESTION}}}$

name the metalliod in the third period?

$\sf \bf \huge {\boxed {\mathbb {ANSWER}}}$

silicon is metalloid in the third period.

$\sf \bf \huge {\boxed {\mathbb {QUESTION}}}$

name the group to which sodium and lithium belong?

$\sf \bf \huge {\boxed {\mathbb {ANSWER}}}$

sodium and lithium belong to group IA of the modern periodic table

$\sf \bf \huge {\boxed {\mathbb {QUESTION}}}$

name the group to which magnesium and calcium belong

$\sf \bf \huge {\boxed {\mathbb {ANSWER}}}$

magnesium and calcium belong to I I A group of periodic table