Atomic Structure Quiz Review

Which container shows matter as a solid?

• 1

• 2

• 3

Tags

NGSS.5-PS1-3

Which model of the atom was developed first?

• There is a small, positive nucleus in the center.

• Electrons orbit in clouds called orbitals.

• The nucleus contains protons and neutrons.

• Atoms are solid spheres.

The most current model of the atom has electrons

• stuck in a solid sphere

• randomly moving in empty space

• in cloud-like regions called orbitals

• orbiting in perfectly circular paths

Boron (B) has _______ protons.

• 5

• 6

• 10

• 11

Which subatomic particle identifies the element?

• electrons

• protons

• neutrons

An element with atomic number 8 and an atomic mass 18 must have

• 8 neutrons

• 8 electron shells

• 10 protons

• 10 neutrons

Tags

NGSS.MS-PS1-1

What particles are found in the nucleus of the atom?

• protons, only

• neutrons, only

• protons and neutrons

• protons, neutrons and electrons

How many valence electrons does this atom have?

• 2

• 4

• 6

Tags

NGSS.MS-PS1-1

How many electron shells does this atom contain?

• 2

• 3

• 5

• 15

An atom contains 9 protons, 10 neutrons and 9 electrons. What is its mass?

• 9

• 10

• 19

• 28