Atomic Structure Practice

Front

What is true about a neutral atom?

Back

The number of protons equal the number of electrons.

Front

The nucleus is ____________ charged whereas the electron cloud is ____________ charged.

Back

positively, negatively.

Front

What does the 1.0079 stand for?

Back

atomic mass.

Front

What is the mass number defined as?

Back

the number of protons and neutrons.

Front

If an atom has 10 electrons, how many protons does it have?

Back

10.

Front

What are protons?

Back

Positively charged particles found in the nucleus of an atom.

Front

What are neutrons?

Back

Neutral particles found in the nucleus of an atom.

Front

What are electrons?

Back

Negatively charged particles that orbit the nucleus of an atom.

Front

What is an atomic number?

Back

The number of protons in the nucleus of an atom.

Front

What is the difference between atomic mass and mass number?

Back

Atomic mass is the weighted average of an element's isotopes, while mass number is the total number of protons and neutrons.