Assertion: Elements with the same chemical properties are kept in the same group.

Reason: Elements in a group have the same number of electrons in the outermost shell hence they have similar chemical properties.

Both assertion and reason are true and the reason is the correct explanation for the assertion.

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Both assertion and reason are true but the reason is not the correct explanation for the assertion.

No worries! We‘ve got your back. Try BYJU‘S free classes today!

The assertion is true but the reason is false.

No worries! We‘ve got your back. Try BYJU‘S free classes today!

The assertion is false but the reason is true.

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is A
Both assertion and reason are true and the reason is the correct explanation for the assertion.

The chemical properties of an element depend on the number of electrons in the outermost shell or orbit. Since all the elements in the group of a periodic table have the same number of electrons in the outermost shell, therefore, they have similar chemical properties. Therefore, the reason given to us is a correct explanation for the assertion made.

Suggest Corrections

Similar questions

Q. Assertion: C₄ – photosynthetic pathway is more efficient than C₃ pathway Reason: Photorespiration is suppressed in C₄ plants

Q. Assertion: Magnesium is important in carbohydrate and protein metabolism. Reason: Mg²⁺ is involved in the synthesis of Nucleic acids.

Assertion: In rolling a dice, event A = {1, 3, 5} and event B = {2, 4} are mutually exclusive events.
Reason: In a sample space, two events are mutually exclusive if they do not occur at the same time.

Assertion : In rolling a die, event A = {1, 3, 5} and event B = {2, 4} are mutually exclusive events.
Reason : In a sample space two events are mutually exclusive if they do not occur at the same time.

Q. Assertion : Amount of cyanocobalamine required daily is 3 mcg
Reason : Its deficiency causes pernicious anaemia

Join BYJU'S Learning Program

Assertion: Elements with the same chemical properties are kept in the same group. Reason: Elements in a group have the same number of electrons in the outermost shell hence they have similar chemical properties.

Assertion: Elements with the same chemical properties are kept in the same group.

Reason: Elements in a group have the same number of electrons in the outermost shell hence they have similar chemical properties.