Atomic Structure Flashcard

Front

What is the atomic number?

Back

The number of protons in the nucleus.

Front

How many neutrons are in an element with a mass number of 11 and an atomic number of 5?

Back

6 neutrons.

Front

What does the number 6 represent in atomic structure?

Back

Atomic number.

Front

If an atom has 12 positively charged subatomic particles, how many electrons must it have to be neutral?

Back

12 electrons.

Front

What is the mass number?

Back

The number of protons and neutrons in the nucleus.

Front

What is a proton?

Back

A positively charged subatomic particle found in the nucleus of an atom.

Front

What is a neutron?

Back

A neutral subatomic particle found in the nucleus of an atom.

Front

What is an electron?

Back

A negatively charged subatomic particle that orbits the nucleus of an atom.

Front

What is the relationship between atomic number and the number of protons?

Back

The atomic number is equal to the number of protons in an atom.

Front

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

Back

Mass number - Atomic number = Number of neutrons.