Sub Atomic Particles II

What is the name of the positively charged subatomic particle?

Proton — location: nucleus; mass: approximately 1 amu; charge: +1.

What is the name of the neutral subatomic particle?

Neutron — location: nucleus; mass: approximately 1 amu; charge: 0.

What is the name of the negatively charged subatomic particle?

Electron — location: electron cloud outside the nucleus; mass: approximately 0 amu (about 1/1836 amu); charge: −1.

Where are protons located in an atom?

In the nucleus.

Where are neutrons located in an atom?

In the nucleus.

Where are electrons located in an atom?

In the electron cloud outside the nucleus.

What is the approximate mass of a proton in amu?

Approximately 1 amu.

What is the approximate mass of a neutron in amu?

Approximately 1 amu.

What is the approximate mass of an electron in amu?

Approximately 0 amu (about 0.00055 amu).

What is the electric charge of a proton?

+1 (positive).

What is the electric charge of a neutron?

0 (neutral).

What is the electric charge of an electron?

−1 (negative).

Which two subatomic particles are found in the nucleus?

Protons and neutrons.

Which subatomic particle is found outside the nucleus?

Electrons.

Which two subatomic particles have approximately the same mass?

Protons and neutrons; each has a mass of approximately 1 amu.

Which subatomic particle has the smallest mass?

The electron.

Which subatomic particle determines the positive charge of the nucleus?

The proton.

Which subatomic particle has no electric charge?

The neutron.

Which subatomic particle has a charge equal in magnitude but opposite in sign to a proton?

The electron.

What are the three subatomic particles and their basic properties?

Proton: nucleus, ~1 amu, +1. Neutron: nucleus, ~1 amu, 0. Electron: electron cloud, ~0 amu, −1.