Chemistry Diagnostic v1

All matter is made of what...

• energy

• atoms

• electrons

• compounds

Tags

NGSS.MS-PS1-1

The positive particles of an atom are

• electrons

• positrons

• neutrons

• protons

The central region of an atom where its neutrons and protons are is its

• nucleus

• electron cloud

• core

• center

Particles in an atom that are neutral and have no charge are

• negatrons

• electrons

• neutrons

• protons

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

• Proton
• Neutron
• Electron
• Quark

What does the 1.00794 stand for?

• Hydrogen

• atomic number

• atomic mass

• atomic explosion

Tags

NGSS.HS-PS1-1

In the modern periodic table, elements are arranged by:

• atomic mass

• atomic number

• valence electrons

• number of isotopes

What is the number of protons that the element in this image contain?

• 14

• 7

• 15

• 18

Tags

NGSS.MS-PS1-1

How many neutrons are in the atom "K"?

• 7

• 2

• 39

• 20

Tags

NGSS.MS-PS1-1

What two sub-atomic particles belong in the nucleus of an atom?

• electrons and protons

• protons and neutrons

• electrons and neutrons