Complete the statement:
The total number of protons and neutrons in the nucleus of an atom is called its ___.

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Solution

The total number of protons and neutrons in a nucleus of an atom is called mass number.
$Mass number = Number of proton + Number of neutrons$
Eg- An element X has $11$ protons and $12$ neutrons. Its mass number will be $11 + 12 = 23$ .

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Give one word answer for the following:

The total number of protons and neutrons present in the nucleus of an atom.

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.

Complete the following :

The total number of protons and neutrons in the nucleus of an atom is called it's _______.

The total number of protons and neutrons in the nucleus of an atom is called its ____

The number of protons and neutrons present in the nucleus of an atom is called its _________.

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Complete the statement:The total number of protons and neutrons in the nucleus of an atom is called its ___.

The total number of protons and neutrons in a nucleus of an atom is called mass number. Massnumber=Numberofproton+NumberofneutronsEg- An element X has 11 protons and 12 neutrons. Its mass number will be 11+12=23.

Complete the statement:
The total number of protons and neutrons in the nucleus of an atom is called its ___.

The total number of protons and neutrons in a nucleus of an atom is called mass number.
$Mass number = Number of proton + Number of neutrons$
Eg- An element X has $11$ protons and $12$ neutrons. Its mass number will be $11 + 12 = 23$ .