IPC Periodic table and atomic theory October 7

Front

What does the nucleus of an atom contain?

Back

Protons and neutrons.

Front

How can the nucleus of an atom be described?

Back

Dense and positively charged.

Front

What are the rows in the Periodic Table called?

Back

Periods.

Front

What does the number at the top of an element box represent?

Back

Atomic number.

Front

What are the atoms along the staircase in the Periodic Table called?

Back

Metalloids.

Front

What is the charge of protons?

Back

Positive.

Front

What is the charge of neutrons?

Back

Neutral.

Front

What is the charge of electrons?

Back

Negative.

Front

What is the atomic mass of an element?

Back

The average mass of an atom of an element, measured in atomic mass units (amu).

Front

What are groups or families in the Periodic Table?

Back

Columns of elements that have similar chemical properties.