Basic Chemistry Flashcard

Front

What does the mass number represent?

Back

The number of protons and neutrons together.

Front

Which part of an atom is represented by the orange circles?

Back

Protons.

Front

What does the atomic number represent?

Back

The number of protons.

Front

A molecule is made up of ____ or more atoms.

Back

2 or more.

Front

How many hydrogen atoms are there in a water molecule?

Back

2.

Front

What is an atom?

Back

The basic unit of a chemical element.

Front

What are electrons?

Back

Negatively charged particles found in an atom.

Front

What are neutrons?

Back

Neutral particles found in the nucleus of an atom.

Front

What are protons?

Back

Positively charged particles found in the nucleus of an atom.

Front

What is a chemical bond?

Back

A lasting attraction between atoms that enables the formation of chemical compounds.