HARD
10th Kerala Board
IMPORTANT
Earn 100

The element X in group 17 has 3 shells. If so, what will be the chemical formula of the compound formed if the element X reacts with element Y of the third period which contains one electron in the p subshell?

Important Questions on Periodic Table and Electronic Configuration

HARD
10th Kerala Board
IMPORTANT
Chemistry Standard X Part 1>Chapter 1 - Periodic Table and Electronic Configuration>Let's assess>Q 5
The element Cu with atomic number 29 undergoes a chemical reaction to the formation with oxidation number +2. Write down the subshell electronic configuration of this ion.
HARD
10th Kerala Board
IMPORTANT
Chemistry Standard X Part 1>Chapter 1 - Periodic Table and Electronic Configuration>Let's assess>Q 5
The element Cu with atomic number 29 undergoes a chemical reaction to the formation with oxidation number +2. Can this element show variable valency? Why?
MEDIUM
10th Kerala Board
IMPORTANT
Chemistry Standard X Part 1>Chapter 1 - Periodic Table and Electronic Configuration>Let's assess>Q 5
The element Cu with atomic number 29 undergoes a chemical reaction to the formation with oxidation number +2. Write down the chemical formula of one compound formed when this element reacts with chlorineCl17.
HARD
10th Kerala Board
IMPORTANT
Chemistry Standard X Part 1>Chapter 1 - Periodic Table and Electronic Configuration>Let's assess>Q 6
Certain subshells of an atom are given below 2s, 2d, 3f, 3d, 5s, 3p. Which are the subshells that are not possible?
HARD
10th Kerala Board
IMPORTANT
Chemistry Standard X Part 1>Chapter 1 - Periodic Table and Electronic Configuration>Let's assess>Q 6
Certain subshells of an atom are given below 2s, 2d, 3f, 3d, 5s, 3p. Which are the subshells that are not possible. Give the reason.