Periodic Table Intro Practice

Front

How many electrons are in a neutral Boron atom?

Back

5

Front

What is the mass number of Boron?

Back

7

Front

How many protons are in a Boron atom?

Back

5

Front

What is the number of protons in the element with atomic number 7?

Back

7

Front

What does the letter 'C' represent in the periodic table?

Back

Chemical symbol

Front

What is the atomic number of an element?

Back

The number of protons in the nucleus of an atom.

Front

What is the difference between atomic mass and mass number?

Back

Atomic mass is the weighted average mass of an element's isotopes, while mass number is the total number of protons and neutrons in an atom.

Front

What is an isotope?

Back

Atoms of the same element that have different numbers of neutrons.

Front

What is the significance of the periodic table?

Back

It organizes elements based on their atomic number, electron configuration, and recurring chemical properties.

Front

What is a chemical symbol?

Back

A one or two-letter notation used to represent an element.