NEW
Font size
S
M
L
XL
WorksheetsHonors Chemistry Sem 1 Review
Total questions: 25
Worksheet time: 13mins
Name
Class
Date
1.
Which states that we cannot simultaneously know an electron's position & velocity?
a)
Hund's Rule
b)
Heisenberg Uncertainty Principle
c)
Aufbau Principle
d)
Pauli Exclusion Principle
2.
How many electrons does an atom of S2- have?
a)
15
b)
16
c)
17
d)
18
3.
The core of an atom is
a)
positive and densely packed
b)
negative and densely packed
c)
positive and loosely bound
d)
negative and loosely bound
4.
How many protons, neutrons, and electrons does beryllium have?
a)
4,4,4
b)
4,5,4
c)
4,4,5
d)
4,5,6
5.
Atoms of the same element have the same number of
a)
neutrons
b)
electrons
c)
protons
d)
nucleons
6.
The mass of an electron is the same as the mass of a proton.
a)
True
b)
False
7.
What is the electron configuration for magnesium?
a)
1s22s22p63s23p2
b)
1s22s22p73s1
c)
1s22s23s24s25s26s2
d)
1s22s22p63s2
8.
[Kr]5s1 is the noble gas notation for
a)
bromine
b)
krypton
c)
rubidium
d)
potassium
9.
The s orbital is shaped like
a)
a circle
b)
a dumbell
c)
a sphere
d)
too complicated to tell
10.
The ___ the boiling point & the ___ the melting point, the ___ the intermolecular force
a)
lower, higher, weaker
b)
higher, lower, stronger
c)
higher, higher, stronger
d)
higher, higher weaker
11.
When the right amount of energy is absorbed, electrons ___ an energy level
a)
jump up
b)
drop down
c)
jump up and then drop down
d)
don't move from
12.
Which type of spectrum shows colors of light when electrons move to their ground state?
a)
emission
b)
absorption
c)
adsorption
d)
continuous
13.
The difference between the mass of a nucleus and the sum of the masses of the constituent particles is called
a)
photoelectric effect
b)
alpha emission
c)
theory of relativity
d)
mass defect
14.
Which of the following occurs during beta decay?
a)
helium nucleus is ejected
b)
neutron converted to proton
c)
proton converted to neutron
d)
gamma ray is emitted
15.
The half life of Zn-71 is 2.4 minutes. If you started with 100.0 g, how much is left after 7.2 minutes?
a)
50 g
b)
25 g
c)
12.5 g
d)
6.25 g
16.
Strong covalent bonds in a lattice (no individual molecules) form ___ compounds
a)
network covalent
b)
ionic
c)
metallic
d)
molecular covalent
17.
What is the frequency of a wave that has a wavelength of 735 nm?
a)
245 Hz
b)
7.35 x 107 Hz
c)
6.626 x 10-34 Hz
d)
4.08 x 1014 Hz
18.
Electronegativity increases as you go towards the ____ on the periodic table
a)
lower right
b)
upper right
c)
lower left
d)
upper left
19.
Intermolecular forces
a)
are the strongest type of bond
b)
do not affect melting and boiling point
c)
allow solids and liquids to exist
d)
act between atoms in a molecule
20.
Which element has the highest ionization energy?
a)
chlorine
b)
radon
c)
hydrogen
d)
francium
21.
Which of the following would have a non polar covalent bond?
a)
H-O
b)
N-H
c)
Na-Cl
d)
C-S
22.
What is the formula for a compound that forms between phosphorous and lithium?
a)
Li2P3
b)
Li3P2
c)
LiP3
d)
Li3P
23.
Why are ionic solids so brittle?
a)
cations to not like to interact with anions
b)
lattice shifts cause charge repulsion
c)
they have a mobile pool of electrons to allow sliding
d)
they have low melting points
24.
What is the percent mass of oxygen in CO2?
a)
33.33%
b)
66.67%
c)
27.29%
d)
72.71%
25.
Ionic bonds attracting ions are stronger than intermolecular forces between molecules.
a)
True
b)
False
Reset
