MyQuestionIcon

8

You visited us 8 times! Enjoying our articles? Unlock Full Access!

Electronic configuration

The atomic nu...

Question

The atomic number of an element X is 19. The number of electrons in its ion X⁺ will be:
(a) 18
(b) 19
(c) 20
(d) 21

Open in App

Solution

(a) 18
Because X⁺ ion contains one less electron than X.

Suggest Corrections

thumbs-up

2

Similar questions

The atomic number of an elelment X is 19. The number of electrons in its ion X' will be:
(a) 18 (b) 19 (c) 20 (d) 21

Q. The atomic number of an element Y is 17. The number of electrons in its ion Y⁻ will be:
(a) 17
(b) 18
(c) 19
(d) 20

The atomic number of an element E is 16. The number of electrons in its ion $E^{2 -}$ will be:

Q. If the number of protons in one atom of an element Y is 20, then the number of electrons in its ion Y²⁺ will be:
(a) 20
(b) 19
(c) 18
(d) 16

Q. An element has atomic number

29

. It belongs to the period

x

y

(2 x + y)

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Reproduction in Plants

CHEMISTRY

Watch in App

explore_more_icon

Explore more

Electronic configuration

Standard X Chemistry

Join BYJU'S Learning Program

CrossIcon