CameraIcon

SearchIcon

MyQuestionIcon

1

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

Valency

An atom with ...

Question

Question 14
An atom with 3 protons and 4 neutrons will have a valency of

(a) 3
(b) 7
(c) 1
(d) 4

Open in App

Solution

The answer is (c).
Given that, number of protons in an atom = 3 and number of neutrons = 4
Electronic configuration of $_{3} L i = 2, 1$
As it has one valence electron. therefore its valency is also 1.

Suggest Corrections

thumbs-up

4

Similar questions

An atom with 3 protons and 4 neutrons will have a valency of-

Q. A) Rutherford's alpha parcticle scattering experiment led to the discovery of the ______
B) Isotopes have same________ but different _______C) Neon and chlorine have atomic numbers 10 and 17 respectively. Their valencies will be _________and ______________D) An atom with 3 protons and 4 neutrons will have a valency of_________

Q. A nitrogen nucleus

_{7}^{14} N

absorbs a neutron and can transform into lithium nucleus

_{3}^{7} L i

under suitable conditions, after emitting:
(i)

4

3

5

1

beta particle
(iii)

2

alpha particles and

2

gamma photons
(iv)

1

alpha particle,

4

2

beta particles
(v)

4

4

An element A atomic number 7 mass number 14

B electronic configuration 2, 8, 8

C electrons 13, neutrons 14

D Protons 18 neutrons 22

E electronic configuration 2, 8, 8, 1

State (i) valency of each element (ii) which one is a metal (iii) which is a non-metal (iv) which is an inert gas.

Name the following :

(a) The element which does not contain any neutron m its nucleus.

(b) An element having valency 'zero'.

(c) Metal with valency 2.

(d) Two atoms having the same number of protons and electrons but different number of neutrons.

(e) The shell closest to the nucleus of an atom.

View More

Join BYJU'S Learning Program

explore_more_icon

Explore more

Standard IX Chemistry

Join BYJU'S Learning Program

CrossIcon