IA3 Review Atoms and Periodic Table

Front

What does the atomic number represent?

Back

The atomic number represents the number of protons in an atom, which also equals the number of electrons in a neutral atom.

Front

What are the vertical columns in the Periodic Table called?

Back

The vertical columns in the Periodic Table are called groups.

Front

In which group is Sodium (Na) found?

Back

Sodium (Na) is found in group 1.

Front

What information does the atomic number provide?

Back

The atomic number tells you the number of both electrons and protons in an atom.

Front

How many electron shells does Carbon have?

Back

Carbon has 2 electron shells.

Front

What is the definition of an atom?

Back

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

Front

What is the significance of the Periodic Table?

Back

The Periodic Table organizes elements based on their atomic number, electron configuration, and recurring chemical properties.

Front

What is the difference between groups and periods in the Periodic Table?

Back

Groups are vertical columns that contain elements with similar properties, while periods are horizontal rows that indicate the number of electron shells.

Front

What is the atomic mass?

Back

The atomic mass is the weighted average mass of an element's isotopes, measured in atomic mass units (amu).

Front

What is a chemical symbol?

Back

A chemical symbol is a one or two-letter abbreviation used to represent an element.