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ZanzabumX [31]
3 years ago
10

An atom has a charge of

Chemistry
2 answers:
Taya2010 [7]3 years ago
5 0

Answer:

B. There is one negatively charged electron out side the nucleus.

Explanation:

its correct

Sliva [168]3 years ago
4 0

Answer:

B = there is one negatively charged electron out side the nucleus.

Explanation:

The three subatomic particles construct an atom electron, proton and neutron. A neutral atom have equal number of proton and electron. In other words we can say that negative and positive charges are equal in magnitude and cancel the each other. For example if neutral atom has 6 protons than it must have 6 electrons.

If nucleus have +1 charge it means one more proton is added. In order to make the nucleus overall neutral one electron must be added so that negative and positive cancel the effect of each other and make the atom neutral.

Electron:

The electron is subatomic particle that revolve around outside the nucleus and has negligible mass. It has a negative charge.

Symbol= e⁻

Mass= 9.10938356×10⁻³¹ Kg

It was discovered by j. j. Thomson in 1897 during the study of cathode ray properties.

Proton and neutron:

While neutron and proton are present inside the nucleus. Proton has positive charge while neutron is electrically neutral. Proton is discovered by Rutherford while neutron is discovered by James Chadwick in 1932.

Symbol of proton= P⁺

Symbol of neutron= n⁰

Mass of proton=1.672623×10⁻²⁷ Kg

Mass of neutron=1.674929×10⁻²⁷ Kg

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