Science and Technology Standard Ten Part - 1>Chapter 2 - Periodic Classification of Elements>Use your brain power>Q 1

EASY

10th Maharashtra Board

IMPORTANT

Earn 100

Element $K$ $Na$ $Rb$ $Cs$ $Li$

Atomic radius (pm) $231$ $186$ $244$ $262$ $152$

By referring to the modern periodic table find out the group to which above the elements belong

Important Questions on Periodic Classification of Elements

MEDIUM

10th Maharashtra Board

IMPORTANT

Science and Technology Standard Ten Part - 1>Chapter 2 - Periodic Classification of Elements>Use your brain power>Q 2

Element	$K$	$Na$	$Rb$	$Cs$	$Li$
Atomic radius (pm)	$231$	$186$	$244$	$262$	$152$

Arrange the above elements vertically downwards in increasing order of atomic radii.

MEDIUM

10th Maharashtra Board

IMPORTANT

Science and Technology Standard Ten Part - 1>Chapter 2 - Periodic Classification of Elements>Use your brain power>Q 3

Element	$K$	$Na$	$Rb$	$Cs$	$Li$
Atomic radius (pm)	$231$	$186$	$244$	$262$	$152$

Does this arrangement match the pattern of the group $1$ of the modern periodic table?

MEDIUM

10th Maharashtra Board

IMPORTANT

Science and Technology Standard Ten Part - 1>Chapter 2 - Periodic Classification of Elements>Use your brain power>Q 4

Element	$K$	$Na$	$Rb$	$Cs$	$Li$
Atomic radius (pm)	231	186	244	262	152

Which of the above elements have the biggest and the smallest atom?

MEDIUM

10th Maharashtra Board

IMPORTANT

Science and Technology Standard Ten Part - 1>Chapter 2 - Periodic Classification of Elements>Use your brain power>Q 5

What is the periodic trend observed in the variation of atomic radii down a group?

Element	$K$	$Na$	$Rb$	$Cs$	$Li$
Atomic radius (pm)	$231$	$186$	$244$	$262$	$152$

MEDIUM

10th Maharashtra Board

IMPORTANT

Science and Technology Standard Ten Part - 1>Chapter 2 - Periodic Classification of Elements>Use your brain power>Q 1

Look at the elements of the third period. Classify them into metals and nonmetals.

MEDIUM

10th Maharashtra Board

IMPORTANT

Science and Technology Standard Ten Part - 1>Chapter 2 - Periodic Classification of Elements>Use your brain power>Q 2

On which side of the period are the metals? Left or right?

MEDIUM

10th Maharashtra Board

IMPORTANT

Science and Technology Standard Ten Part - 1>Chapter 2 - Periodic Classification of Elements>Use your brain power>Q 3

On which side of the period did you find the nonmetals?

MEDIUM

10th Maharashtra Board

IMPORTANT

Science and Technology Standard Ten Part - 1>Chapter 2 - Periodic Classification of Elements>Use your brain power>Q 1

What is the cause of nonmetallic character of elements?