The three basic components of an atom are:

protons, neutrons, and electrons

protium, deuterium, and tritium

A single proton has what electrical charge?

either a positive or negative charge

The nucleus of an atom consists of:

protons, neutrons, and electrons

The atomic number of an atom is:

the number of protons plus the number of neutrons

Which two particles would be attracted to each other?

all particles are attracted to each other

Which particles have approximately the same size and mass as each other?

none - they are all very different in size and mass

According to atomic theory, electrons are usually found:

outside the nucleus and often far from it - most of an atom's volume is its electron cloud

outside the nucleus, yet very near it because they are attracted to the protons

either in the nucleus or around it - electrons are readily found anywhere in an atom

Chemistry Test: Atom Basics Live Quiz

Chemistry

Grade 6th,
Grade 7th,
Grade 8th,
Grade 9th

NGSS

Reviewed by Janyce Wowk

Janyce Wowk, BS (Chemistry) |

Chemistry

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Janyce Wowk is a chemistry professional with a B.S. in Chemistry from Montclair State University. Her experience as a research assistant and lab technician in a PFAS laboratory has allowed her to develop strong laboratory, data analysis, and research skills.

, BS (Chemistry)

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