MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Number of Elements in a Period

The element w...

Question

The element with the atomic number $9$ resembles with the element having the atomic number:

A

8

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

B

17

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

C

36

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

D

27

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

Open in App

Solution

The correct option is B $17$
Atomic number 9 has electronic configuration=2,7
Atomic number 17 has an electronic configuration=2,8,7.
So, both the elements belong to the same group i.e. halogens and have similar properties as they have the same number of valence electrons.

Suggest Corrections

thumbs-up

0

Similar questions

Q. The element with atomic number 9 resembles with the element having atomic number:

Q. An element with atomic number

17

is placed in the group

17

of the long from periodic table. Element with atomic number

9

is placed above and with atomic number

35

is placed below it. Element with atomic number

16

is placed left and with atomic number

18

is placed right to it. Which of the following statements are correct?

a) Valency of the element with atomic number

18

b) Elements with same valency will have atomic number

16

17

18

.

c) Valency of element with atomic number

9

17

35

d) Element with atomic number

17

is more electronegative than element with atomic number

16

35

Q. An element with atomic number

17

is placed in the group

17

of the long form periodic table. Element with atomic number

9

is placed above and with atomic number

35

is placed below it. Element with atomic number

16

is placed left and with atomic number

18

is placed right to it. Which of the following statements are correct:
(i) Valency of the element with atomic number

18

0

(ii) Elements with same valency have atomic number

16, 17

18

(iii) Valency of elements with atomic number

9, 17

35

is one
(iv) Element with atomic number

17

is more electronegative than elements with atomic number

16

35

Q. The elements with atomic numbers

9, 17, 35, 53, 85

Q. Elements with atomic numbers 9, 17, 35, 53 are collectively known as:

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Contraceptive Methods

CHEMISTRY

Watch in App

explore_more_icon

Explore more

Number of Elements in a Period

Standard X Chemistry

Join BYJU'S Learning Program

CrossIcon