IPC - Unit 2 - Atoms & the Periodic Table

Front

What is the basic unit of matter?

Back

Atoms are the basic unit of matter.

Front

What do isotopes of an element have in common?

Back

Isotopes of an element have the same atomic number but different mass numbers.

Front

What does the atomic number represent?

Back

The atomic number represents the number of protons in an atom.

Front

What are the horizontal rows in the Periodic Table called?

Back

The horizontal rows in the Periodic Table are called periods.

Front

What is the majority composition of an atom?

Back

An atom is mostly made up of empty space.

Front

What particles are found in the nucleus of an atom?

Back

Protons and neutrons are found in the nucleus of an atom.

Front

What is the charge of an electron?

Back

Electrons have a negative charge.

Front

What is the charge of a proton?

Back

Protons have a positive charge.

Front

What is the significance of the mass number?

Back

The mass number is the total number of protons and neutrons in an atom.

Front

What are groups in the Periodic Table?

Back

Groups are the vertical columns in the Periodic Table that contain elements with similar properties.