Unit 2 atomic structure(test)

Front

Where is most of the mass in an atom located?

Back

In the nucleus.

Front

What is the atomic number of an atom?

Back

The atomic number is the number of protons in the nucleus of an atom.

Front

Which of the following determines the identity of an element?

Back

The number of protons determines the identity of an element.

Front

What does the symbol 'C' represent in the periodic table?

Back

The symbol 'C' represents the chemical symbol for Carbon.

Front

Where are the electrons found in the structure of an atom?

Back

Electrons are found in spaces around the nucleus.

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.

Front

What is atomic mass?

Back

Atomic mass is the weighted average mass of an atom's isotopes.