Atoms and Periodic Tile

Front

The positively charged particles of an atom are the ________.

Back

protons

Front

What are valence electrons?

Back

The number of electrons in the outermost energy level

Front

What is the mass number of this atom?

Back

7

Front

Which statement correctly describes the location and charge of the neutrons in an atom?

Back

The neutrons are inside the nucleus and have a neutral charge.

Front

What is the mass number of this element?

Back

59

Front

What are electrons?

Back

Negatively charged particles that orbit the nucleus of an atom.

Front

What is an atom?

Back

The basic unit of a chemical element, consisting of a nucleus surrounded by electrons.

Front

What is the nucleus of an atom?

Back

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

Front

What is the atomic number?

Back

The number of protons in the nucleus of an atom, which determines the element.

Front

What is the difference between mass number and atomic number?

Back

Mass number is the total number of protons and neutrons, while atomic number is just the number of protons.