Atomic Structure

Front

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

Back

Chemical symbol for the element Carbon.

Front

Which subatomic particle has a positive charge?

Back

Proton.

Front

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

Back

6 neutrons.

Front

Atoms of the same element must always have the same number of _________.

Back

Protons.

Front

What are the different energy levels of electrons as they orbit the nucleus called?

Back

Orbitals (Energy Levels).

Front

What is the atomic number of an element?

Back

The number of protons in the nucleus of an atom.

Front

What is the mass number of an atom?

Back

The total number of protons and neutrons in the nucleus.

Front

What is an isotope?

Back

Atoms of the same element with different numbers of neutrons.

Front

What charge does an electron have?

Back

Negative charge.

Front

What is the nucleus of an atom composed of?

Back

Protons and neutrons.