Chapters 1-4

Chapter 1

100

7.500 x 10² m = ______________ km

0.7500 km

200

4.80 x 10² μL = _______________ kL

 4.80 x 10^-7 kL

300

1.20 x 10^-3 km = _______________ mm  

1.20 x 10³ mm

400

If you start with the number 40000.0, how many significant figures should you have in your answer?

6

500

55.0 mi/hr = ____________ m/s

 24.6 m/s

Chapter 2

100

What is the isotope name if it has the atomic number of 11, 16 neutrons, and 11 electrons?

Sodium-27

200

What is the total number of electrons, energy level, and number of valence electrons for Se?

Total # of electrons: 34

Energy Level: 4 

Valence Electrons: 6

300

What is the daughter nuclide if the parent nuclide is 120/60 Nd after going through beta decay?

120/59 Pr

400

What stays the same throughout beta decay?

atomic mass

500

How many protons, neutrons, and electrons does the isotope 52/25 Mn^-4 have?

P- 25

N- 27

E- 21

Chapter 3

100

How many valence electrons does it take to form an octet?

8

200

What are the two types of bonds that atoms are connected by?

ionic and covalent

300

Do metals want to gain or lose electrons?

lose

400

How many electrons does sodium want to gain or lose?

lose 1

500

Explain cation vs. anion?

cation - loses electrons

anion - gains electrons

Chapter 4

100

CH₄ (central atom = C) 

1. Number of electron groups on C: ______ 

4

200

CO₂ (central atom = C) 

1. Electron geometry: __________________________ 

2. Molecular geometry: ________________________ 

linear & linear

300

HCl 

1. Strongest intermolecular force: __________________________ 

dispersion

400

CF₄ 

1. Are the C–F bonds polar or nonpolar? ____________________ 

2. Is the CF₄ molecule overall polar or nonpolar? ___________ 

polar bonds & nonpolar molecule

500

NH₃ (central atom = N) 

1. Electron geometry: __________________________ 

2. Molecular geometry: ________________________ 

tetrahedral & trigonal pyramidal 

Miscellaneous

100

How many electron groups does SF₄ have?

5

200

What is the daughter nuclide if the parent nuclide is 120/60 Nd after going through alpha decay?

116/58 Ce

300

What is the parent nuclide of 110/55 Cs after going through beta decay?

110/54 Xe

400

What element is in energy level 3 and has 4 valence electrons?

Si

500

What three conditions must be met for a molecule to exhibit hydrogen bonding as an intermolecular force?

• Hydrogen must be covalently bonded to a highly electronegative atom: N, O, or F. 

• There must be lone pairs on N, O, or F atoms in nearby molecules. 

• Molecules must be close enough for these strong dipole interactions to occur.