8/15/25 HOMEWORK

Front

What makes up the majority of the mass in the atom?

Back

The nucleus, which contains protons and neutrons, makes up the majority of the mass in an atom.

Front

Which subatomic particle determines the identity of the atom?

Back

Protons determine the identity of an atom; the number of protons defines the element.

Front

What part of the atom is shown at part A?

Back

Electrons are the negatively charged particles that orbit the nucleus of an atom.

Front

What subatomic particle is considered to have no mass?

Back

The electron is considered to have negligible mass compared to protons and neutrons.

Front

An element is shiny and conducts heat and electricity well. What type of element is it?

Back

It is a metal, which is characterized by its luster and conductivity.

Front

What are protons?

Back

Protons are positively charged subatomic particles found in the nucleus of an atom.

Front

What are neutrons?

Back

Neutrons are neutral subatomic particles found in the nucleus of an atom, contributing to its mass.

Front

What is the electron cloud?

Back

The electron cloud is the region around the nucleus where electrons are likely to be found.

Front

What is the charge of an electron?

Back

Electrons have a negative charge.

Front

How do metals differ from nonmetals?

Back

Metals are typically shiny, malleable, and good conductors of heat and electricity, while nonmetals are dull and poor conductors.