Chemistry REviewer Part 2

The number of Protons is equal to the atomic number of an element.

• True

• False

The number of Protons is equal to the number of Electrons in a Neutral element.

• True

• False

The number of Protons is equal to the number of Electrons in a Charged element.

• True

• False

Neutrons can be calculated through [Atomic Mass] - [Atomic Number]

• True

• False

Very reactive, malleable, ductile, and good conductors

• Alkali Metals

• Alkaline Earth Metals

• Transition Metals

• Halogens

They have low electron affinities and electronegativity.

• Alkali Metals

• Alkaline Earth Metals

• Transition Metals

• Halogens

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

They are fairly unreactive with a high melting point and electroconductivity.

• Alkali Metals

• Alkaline Earth Metals

• Transition Metals

• Halogens

They have very high electronegativity but low ionization energy

• Alkali Metals

• Alkaline Earth Metals

• Transition Metals

• Halogens

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Atoms with the same number of protons but different numbers of neutrons are called?

• Isotopes

• Ions

• Molecules

0.003 has how many significant figures?

• 1

• 4

• 3