You visited us 2 times! Enjoying our articles? Unlock Full Access!

Byju's Answer

Standard XII

Chemistry

Mole Concept

The number of...

Question

The number of neutrons in the nucleus of an atom which has 26 electrons and has a mass number 56 are :

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

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

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

Open in App

Solution

The correct option is B 30
Atomic number $=$ number of electrons $=$ number of protons $= 26$
Mass number $=$ number of neutrons + number of protons $= 56$
$∴$ Number of neutrons $= 56 - 26 = 30$ .

Suggest Corrections

Similar questions

An atom has 26 electrons and its atomic weight is 56. The number of neutrons in the nucleus of the atom will be

Q. An atom of an element has 26 electrons and has a mass number 56. The nucleus of this atom contains____neutrons.

Q. An element has atomic number

17

and mass number

37

. There are

17

electrons outside the nucleus. Find the number of neutrons in it.

Q. An atom of an element contains

13

electrons. Its nucleus has

14

neutrons. Find out its atomic number and approximate atomic mass. An isotope has atomic mass

2

units higher. What will be the number of protons, neutrons and electrons in the isotope?

Fill in the blanks in the following statements :

(a) The number of protons in the nucleus of an atom is called its ....................

(b) The total number of protons and neutrons in the nucleus of an atom is called its ....................

(d) An atom of an element has 11 protons, 11 electrons and 12 neutrons. The atomic mass of the atom is ....................

(e) If the nucleus of an atom has atomic number 17, mass number 37 and there are 17 electrons outside the nucleus, the number of neutrons in it is ....................

(f) Almost all the mass of an atom is concentrated in a small region of space called the ....................

(g) Cathode rays are a beam of fast moving ....................

(h) The anode rays obtained from hydrogen gas consist of particles called ....................

(i) The maximum number of electrons that can be accommodated in L shell are ....................

(j) The maximum number of electrons that can go into the M shell is ....................

(k) The subatomic particle not present in a hydrogen atom is ....................

(l) The electron has .................... charge, the proton has .................... charge, and the neutron has .................... charge.

Join BYJU'S Learning Program

The number of neutrons in the nucleus of an atom which has 26 electrons and has a mass number 56 are :

The correct option is B 30Atomic number = number of electrons = number of protons =26Mass number = number of neutrons + number of protons =56∴ Number of neutrons =56−26=30.

The correct option is B 30
Atomic number $=$ number of electrons $=$ number of protons $= 26$
Mass number $=$ number of neutrons + number of protons $= 56$
$∴$ Number of neutrons $= 56 - 26 = 30$ .