GENERAL KNOWLEDGE

GK

NUCLEAR SCIENCE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Alpha particles ____
A
are positively charged.
B
consist of two protons and four neutrons.
C
can penetrate any thickness of matter
D
All of the above
Explanation: 

Detailed explanation-1: -Alpha particles have a positive charge and are identical with helium nuclei and consist of two protons and two neutrons. They result from the radioactive decay of heavy elements such as radium, thorium, uranium, and plutonium.

Detailed explanation-2: -An alpha particles is positively charged because it is essentially the nucleus of a Helium-4 atom. A Helium-4 nucleus is composed of two protons, which are positively charged particles, and two neutrons, which have no electric charge.

Detailed explanation-3: -The negatively charged particle is (d)beta particle. Alpha particle and positrons are positively charged species while neutron is a neutral species.

Detailed explanation-4: -An Alpha particle is a Helium nucleus consisting of two protons and two neutrons so itscharge is +2e.

Detailed explanation-5: -An alpha particle is a fast moving packet containing two protons and two neutrons (a helium nucleus). Alpha particles carry a charge of +2 and strongly interact with matter.

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