RTE 1401 Test Questions and Answers | 2026 Update | 100% Correct.

RTE 1401 Test Questions and Answers | 2026
Update | 100% Correct.
Atom

Basic unit of matter, composed of protons(in the nucleus) neutrons, electrons(surround the

nucleus

What is the charge of protons?

positive

What is the charge of neutrons?

neutral

What is the charge of an electron?

negative

What makes up an Atomic mass?

protons + neutrons

What are considered the fundamental particles?

Electrons, neutrons, & protons

Nucleons are composed of particles known as?

protons and neutrons in the nucleus

Electrons are

Microscopic particles, related to energy, with very little mass

, K shell

The innermost electron shell of an atom, closest to the nucleus.Maximum amount of electrons it

can hold is 2

valence shell

The outermost energy shell of an atom, containing the valence electrons involved in the chemical

reactions of that atom.

Octect Rule (Rule of 8)

Except for the first shell (full with two electrons) atoms interact to have eight electrons in their

valence shell

Atoms must be electrically...?

Neutral

atomic number

the number of protons in the nucleus of an atom

Anion

A negatively charged ion

Cation

A positively charged ion

The nucleus has a __________ charge?

positive (due to protons)