Chemistry Honors Final Exam Review

Subatomic particles found on the outermost shell & responsible for the atom's reactivity

• neutrons

• valence electrons

• isotopes

• ions

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Calculation used to find the number of neutrons in an atom

• Atomic Mass - Atomic Number
• Atomic Number - Atomic Mass
• Atomic Mass - Electrons
• none of these

Value representing the number of protons in an element

• Atomic Mass
• Mass Number
• Valence Electrons
• Atomic Number

What is the atomic number for an element with 41 neutrons and a mass number of 80?

• 39
• 41
• 80
• 121

What is this element?

• Helium

• Oxygen

• Sodium

• Phosphorous

Tags

NGSS.HS-PS1-1

When there are more protons than electrons in an atom it is a...

• cation, positively charged

• dogion, positively charged

• anion, negatively charged

• uhion, negatively charged

• isotope, positively charged

Tags

NGSS.HS-PS1-1

Which particle has a mass so small, it is considered to be 0 amu?

• proton

• hydrogen nucleus

• neutron

• electron

Which temperature is equal to 170 C?

• 103 K

• 443 K

• -103 K

• 498 K

Which compound has both ionic and covalent bonds?

• CH₄

• CO

• CaCl₂

• MgSO₄

Tags

NGSS.HS-PS1-3

How many electron pairs are shared between the atoms in an N₂ molecule?

• 1

• 2

• 3

• 4

Tags

NGSS.HS-PS1-2