Chemistry 1.1 and 1.2 Flashcard Review

Front

What is the atomic number?

Back

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

Front

What is the area around the nucleus of an atom where its electrons are most likely found?

Back

The area is called the electron cloud.

Front

What charge does an electron have?

Back

An electron has a negative charge.

Front

What is the symbol for Beryllium?

Back

The symbol for Beryllium is Be.

Front

How many valence electrons does Nitrogen have?

Back

Nitrogen has 5 valence electrons.

Front

What is a proton?

Back

A proton is a positively charged particle found in the nucleus of an atom.

Front

What is a neutron?

Back

A neutron is a neutral particle found in the nucleus of an atom.

Front

What is an electron?

Back

An electron is a negatively charged particle that orbits the nucleus of an atom.

Front

What is the nucleus of an atom?

Back

The nucleus is the central part of an atom, containing protons and neutrons.

Front

What is the difference between an atom and a molecule?

Back

An atom is the smallest unit of an element, while a molecule is a group of two or more atoms bonded together.