A scientist studying reactions of metals and non-metals. He knew group 1 and 2 elements are metals while group 17 elements are non-metals. So, he chooses different elements from group 1 and 2 and group17
Name the element in group 17 which belongs to the same period as sodium.

A scientist studying reactions of metals and non-metals. He knew group 1 and 2 elements are metals while group 17 elements are non-metals. So, he chooses different elements from group 1 and 2 and group17 what is the valency of magnesium?

A scientist studying reactions of metals and non-metals. He knew group 1 and 2 elements are metals while group 17 elements are non-metals. So, he chooses different elements from group 1 and 2 and group17 Name the element in group 17 which forms a diatomic molecule and exists in solid state at room temperature .

A scientist studying reactions of metals and non-metals. He knew group 1 and 2 elements are metals while group 17 elements are non-metals. So, he chooses different elements from group 1 and 2 and group17 Write the formula of compound formed in the reaction between lithium and bromine.

A scientist studying reactions of metals and non-metals. He knew group 1 and 2 elements are metals while group 17 elements are non-metals. So, he chooses different elements from group 1 and 2 and group17 write the formula of compound formed in the reaction between calcium and fluorine.

Name radioactive element of Group 17 Halogens family

Classify the elements of the third period into metals and non-metals.

Elements of which group are called as alkali metals?

Write a short note on: Halogens or group 17 elements

Atoms of two different elements are represented in the following diagram. Do these elements belong to the same group ? Justify your answer.

Group 1 and group 2 elements are placed at the ______ of the long form of the modern periodic table .