Atomic Structure/Element Card Review

Front

What is the atomic number?

Back

The atomic number is the number of protons in the nucleus of an atom, which determines the element's identity.

Front

How many neutrons does Chlorine usually have?

Back

Chlorine usually has 18 neutrons.

Front

Which letter represents the nucleus in an atomic model?

Back

The nucleus is represented by letter D.

Front

What is the mass of one proton equal to?

Back

The mass of one proton is equal to the mass of one neutron.

Front

How do you find the number of neutrons in an atom?

Back

To find the number of neutrons, round the atomic mass and subtract the atomic number from it.

Front

What is the mass of an electron compared to a proton?

Back

The mass of an electron is much smaller than that of a proton.

Front

What is an atom?

Back

An atom is the smallest unit of matter that retains the properties of an element.

Front

What are protons?

Back

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

Front

What are neutrons?

Back

Neutrons are neutral particles found in the nucleus of an atom.

Front

What are electrons?

Back

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