Section 2 Review

Atomic Structure

100

What are the 3 parts of an atom, including their charges?

Proton - positive

Neutron - Neutral

Electron - Negative

200

The number of valence electrons can range from (? - ?)

(0-7) or (1-8)

300

Calculate the number of protons, neutrons, electrons, and valence electrons for the element Strontium.

Sr

p⁺ = 38

e^- = 38

n⁰ = 50

Ve^- = 2

400

DAILY DOUBLE!!!!

Calculate the number of protons, neutrons, electrons, and valence electrons for the element Antimony.

Sb

p⁺ = 51

e^- = 51

n⁰ = 71

Ve^- = 5

500

Calculate the number of protons, neutrons, electrons, and valence electrons for the element Thorium.

Th

p⁺ = 90

e^- = 90

n⁰ = 142

Ve^- = N/A

Isotopes

100

What is an isotope?

Isotopes are atoms that have gained or lost one or more neutrons.

200

What are the three different ways to write Nitrogen with a mass of 21.

N-21

²¹N

²¹₇N

300

Calculate the number of protons, neutrons, electrons, and valence electrons for Br-85.

Br-85

p⁺ = 35

e^- = 35

n⁰ = 50

Ve^- = 7

400

Calculate the number of protons, neutrons, electrons, and valence electrons for ¹²⁵Sn.

¹²⁵Sn

p⁺ = 50

e^- = 50

n⁰ = 75

Ve^- = 4

500

Calculate the number of protons, neutrons, electrons, and valence electrons for Argon with the atomic mass of 51.

Ar-50

p⁺ = 18

e^- = 18

n⁰ = 32

Ve^- = 0 or 8

Ionic and Covalent Bonds

100

Define ion and the two sub types of ion

Ions are atoms that have lost or gained electrons

Cations are atoms that have lost electrons

Anions are atoms that have gained electrons

200

An ionic bond is one where the atoms _______ electrons, and a covalent bond is one where the atoms _______electrons.

steal; share

300

Calculate the number of protons, neutrons, electrons, and valence electrons for Ca⁺⁺

Ca⁺⁺

p⁺ = 20

e^- = 18

n⁰ = 20

Ve^- = 0 or 8

400

Calculate the number of protons, neutrons, electrons, and valence electrons for ⁸³Se^--

⁸³Se^--

p⁺ = 34

e^- = 36

n⁰ = 49

Ve^- = 0 or 8

500

Calculate the number of protons, neutrons, electrons, and valence electrons for ²³¹Pb^-4

²³¹Pb^-4

p⁺ = 82

e^- = 86

n⁰ = 149

Ve^- = 0 or 8

Electronegativity

100

What is electronegativity?

Electronegativity is the measurement of how strong the nucleus of an atom pulls on a bonded electron

200

What is the easiest way to determine if the bond type of 2 elements is ionic?

If it is a metal bonded to a nonmetal, it's ionic

300

Determine the bond type: Phosphorus and Boron

Nonpolar

0.15

400

Determine the bond type: Magnesium and Silicon

Ionic

500

Determine the bond type: Oxygen and Selenium

Polar

0.89

?

100

When Hydrogen is acting as a metal in a compound, what are the compounds called?

Acids

200

Covalent bonds can have a single, double and triple bonds. Tell me how many electrons are shared for each bond.

Single: 2

Double: 4

Triple: 6

300

What happens to Chlorine if you add 2 protons?

It turns into Potassium

400

WITHOUT looking at your notes, name all 7 diatomic elements & what it means to be diatomic.

Bromine, Iodine, Nitrogen, Chlorine, Hydrogen, Oxygen, Flourine

These elements are only found bounded to themselves in the natural world

Bonus Points: Tell me what the acronym is to remember the diatomic elements

500

Review Challenge Question: 

Convert 1,200,000 mg to Mg

0.001200 Mg

1.20 x 10^-3 Mg