5 Written questions
5 Matching questions
- What is a hydrogen bond? Strong or weak?
- Define Subatomic particles, their charges, where they're found, and their relative mass.
- What is a compound?
- What's a positive ion called? A negative ion?
- What is the atomic mass?
- a Partial plus of a Hydrogen in a polar molecule forms a bond with a Partial Minus of another polar molecule; Weak bond.
- b Positive ion = CATION
Negative ion = ANION
- c a substance consisting of two or more different elements combined in a fixed ratio.
- d Protons - positive; in nucleus; 1 dalton (or amu)
Neutrons - neutral; in nucleus; 1 dalton (or amu)
Electrons - negative; found outside nucleus; 0 nothing
- e The number of protons and neutrons in nucleus.
5 Multiple choice questions
- Anything that takes up space and has mass. Ex: Air; something that isn't matter: light (think of the filling up a balloon metaphor)
- Atoms interacting with each other to share, take, or give electrons.
- The electrons on the outermost orbital shell
- Polar covalent bond.
(it's when there's more than one polar molecule that hydrogen bonding takes place)
- Ex: O - only 6 rings on outer shell, so it wants to gain 2, making it 2- charge
5 True/False questions
What bond do two oxygen's share? → The sharing of electrons UNEQUALLY; atoms have differing electronegativities
What is electronegativity? → 2 or more atoms held together by covalent bonds
What are covalent bonds? Single? Double? → The electrons on the outermost orbital shell
Are Van der Waals interactions weak or strong? → Weak.
What are ionic bonds? → Electron gaining or losing; e⁻ TRANSFER (NOT SHARING) between two atoms