Atoms & Intro to Periodic Table

Sodium has 11 protons and 12 neutrons. What is the atomic number?

• 12

• 11

• 23

Which subatomic particle has a positive charge?

• Electron

• Neutron

• Proton

Which subatomic particle has a negative charge?

• Electron

• Neutron

• Proton

Which 2 subatomic particles are found in the nucleus of an atom?

• Electron

• Nuetron

• Proton

What is the atomic number for an element with three protons?

• 2
• 1
• 3
• 6

A particle that moves around the nucleus is a(n)...

• Proton
• Neutron
• Electron
• Quark

Tags

NGSS.MS-PS1-1

Most of the mass in an atom is concentrated in the...

• electrons
• nucleus
• protons
• empty space

An arrangement of elements in order of their atomic numbers such that elements with similar properties fall in the same column or group.

• Atomic Number

• Electron Cloud

• Periodic Table

• Nucleus

The smallest unit of an element that maintains the properties of that element is known as--

• a proton

• a neutron

• an element

• an atom

Tags

NGSS.MS-PS1-1

If an atom has 2 protons, 2 neutrons and 2 electrons; what is its Atomic mass?

• 1

• 2

• 3

• 4