Using APE Man

Front

What is the atomic number of an element?

Back

The atomic number is the number of protons in the nucleus of an atom, which determines the element's identity.

Front

How do you find the number of neutrons in an atom?

Back

To find the number of neutrons, subtract the atomic number (number of protons) from the atomic mass (rounded to the nearest whole number).

Front

What is the atomic mass of an element?

Back

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

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

How many protons are in an atom of Oxygen (O)?

Back

8 protons.

Front

What is the relationship between protons and electrons in a neutral atom?

Back

In a neutral atom, the number of protons equals the number of electrons.

Front

What is an isotope?

Back

Isotopes are variants of a particular chemical element that have the same number of protons but different numbers of neutrons.

Front

How many neutrons are in an atom of Carbon-12?

Back

6 neutrons.

Front

What is the electron configuration of Sodium (Na)?

Back

1s² 2s² 2p⁶ 3s¹.

Front

What is the charge of a proton?

Back

A proton has a positive charge of +1.