Final Atomic Structure & Periodic Table

Front

At room temperature, most metals are ______.

Back

Solids

Front

How many electrons will a neutral atom of carbon have if its nucleus has 6 protons and 8 neutrons?

Back

6

Front

The maximum number of electrons that can occupy the 2nd shell of an atom of magnesium is ______.

Back

8

Front

How many electrons can be held in the first energy level?

Back

2

Front

Two different isotopes of an element have different ______.

Back

numbers of neutrons

Front

What is the atomic number of an element?

Back

The number of protons in the nucleus of an atom.

Front

What is an isotope?

Back

Atoms of the same element with different numbers of neutrons.

Front

What is the maximum number of electrons in the third energy level?

Back

18

Front

What is the significance of the periodic table?

Back

It organizes elements based on their atomic number and properties.

Front

What determines the chemical properties of an element?

Back

The arrangement of electrons in its outer shell.