Atoms

Front

What are the particles in an atom that are neutral and have no charge?

Back

Neutrons are the particles in an atom that are neutral and have no charge.

Front

What are the positive particles of an atom called?

Back

Protons are the positive particles of an atom.

Front

Who is known for the atomic model that uses shells for electron configuration?

Back

Niels Bohr is known for the atomic model that uses shells for electron configuration.

Front

How are elements arranged in the modern periodic table?

Back

Elements in the modern periodic table are arranged by atomic number.

Front

What does the number 1.00794 represent in chemistry?

Back

The number 1.00794 represents the atomic mass of Hydrogen.

Front

What is the smallest unit of an element that retains its properties?

Back

An atom is the smallest unit of an element that retains its properties.

Front

What is the charge of an electron?

Back

Electrons have a negative charge.

Front

What is the nucleus of an atom composed of?

Back

The nucleus of an atom is composed of protons and neutrons.

Front

What is the term for atoms of the same element with different numbers of neutrons?

Back

Isotopes are atoms of the same element with different numbers of neutrons.

Front

What is the significance of the atomic number?

Back

The atomic number indicates the number of protons in an atom and defines the element.