Chemistry test review 2.1 & 2.2

What is the basic unit of matter?

• Cell

• Atom

• Molecule

• Compound

Tags

NGSS.MS-PS1-1

What subatomic particles are found in the nucleus?

• Electrons and protons

• Protons and neutrons

• Neutrons and ions

• Protons and isotopes

Which subatomic particle has a negative charge and is found in a cloud outside the nucleus?

• Proton

• Neutron

• Electron

If you change an atom's # of protons, it will change to

• a different isotope

• a different charge

• a different element

• a different nucleus

Tags

NGSS.HS-PS1-8

Use a periodic table. How many protons does Cobalt have?

• 58

• 59

• 27

• 32

Tags

NGSS.MS-PS1-1

Use a periodic table. How many neutrons does Cobalt have?

• 58

• 59

• 27

• 32

Tags

NGSS.HS-PS1-8

How many valence electrons does Strontium (Sr) have?

• 1

• 2

• 38

• 88

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

How many shells (orbitals) will Phosphorous have?

• 1

• 2

• 3

• 5

Tags

NGSS.HS-PS1-1

If an atom is neutrally charged, it will have the same number of _______ as its atomic number.

• neutrons

• isotopes

• electrons

• ions

Tags

NGSS.HS-PS1-1

Use a periodic table. What is Cobalt's mass number?

• 58

• 59

• 27

• 32