Atoms and the Periodic Table

Every atom of the same element has the same atomic number.

• True

• False

The mass number of an element can be used to determine the number of electrons in an atom.

• True

• False

The noble gases are very stable and do not react easily with other elements.

• True

• False

Elements on the far right of the periodic table are classified as nonmetals.

• True

• False

Tags

NGSS.MS-PS1-1

To become more chemically stable, an atom that has two electrons in its outer energy level will need to lose those two electrons.

• True

• False

The three basic components of an atom are _____.

• protons

• neutrons

• ions

• electrons

Tags

NGSS.MS-PS1-1

The nucleus of an atom consists of _____.

• protons

• ions

• neutrons

• electrons

Tags

NGSS.MS-PS1-1

Which two particles would be attracted to each other?

• neutrons

• ions

• protons

• electrons

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

In order to find the number of ___________, you subtract the atomic number from the mass number.

• protons

• neutrons

• electrons

The energy levels or orbitals contain ____________.

• protons

• neutrons

• electrons