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Protons

The atomic pa...

Question

The atomic particle having unit positive charge is called a/an

A

electron

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B

proton

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C

neutron

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D

none of these

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Solution

The correct option is B
proton

Explanation for correct option:
(b) The positively charged particles present inside the nucleus of an atom are called protons. The charge on a proton is taken as unit positive charge.
Explanation for incorrect options:
(a) The negatively charged particles which revolve around the nucleus are called electrons. The charge on a electron is taken as unit negative charge.
(c) The electrically neutral particles present inside the nucleus are called neutrons. Neutrons have no charge on them.
Hence, option (b) is correct.

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Similar questions

The number of unit positive charge carried by the nucleus of an atom is called the atomic number of that atom (element).

Fill in the blanks :

(a) Dalton said that _______________ could not be divided.

(b) An ion which has a positive charge is called a _______________

(c) The outermost shell of an atom is known as _______________

(d) The _______________ of an atom is very hard and dense.

(e) Neutrons are __________________ particles having mass equal to that of portons.

(f) Isotopes are the atoms of __________________element having the __________________atomic number but __________________mass number.

Q. Fill in the following blanks with suitable words:
(a) The particle which is formed by the gain of electrons by an atom is called ___.
(b) The particle which is formed by the loss of electrons by an atom is called ___.
(c) The particle which is formed by the loss or gain of electrons by an atom is called ___.
(d) A potassium ion has positive charge because it contains less ___ than ___.
(e) A sulphide ion has negative charge because it contains less ___ than ___.

Q. Fill in the following blanks with suitable words :
(a) The particle which is formed by gain of electrons by an atom is called ...................
(b) The particle which is formed by the loss of electrons by an atom is called ...................
(c) The particle which is formed by the loss or gain of electrons by an atom is called .....................
(d) A potassium ion has positive charge because it contains less .................... than ...................
(e) A sulphide ion has negative charge because it contains less ....................... than ...................

Q. Fill in the blanks.
(a) An atom consists of _______________, ____________ and _____________.
(b) _____________ are negatively charged particles, while ____________ are positively charged and ____________are ____________.
(c) The ____________ at the center of the atom has ___________ and ____________.
(d) The paths of the negatively charged particles in an atom are called ______________.
(e) Each _____________ is a unit of negative electricity.
(f) In an atom, the _____________ and ____________ are equal in number.
(g) The ___________ and ____________ together make up most of the mass of an atom.
(h) The _____________ of an ____________ is negligible.
(i) The atom as a whole is electrically ______________.
(j) An atom with a shortage or surplus of _____________ is called an ____________.

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