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TEKS Review

Total questions: 64

Worksheet time: 1hrs 19mins

Name
Class
Date
1.

Matter can not be created nor destroyed: it can only be

a)

Destroyed a little bit

b)

Invisible

c)

Transformed, Changed

d)

None of the above

2.

In an exothermic reaction, energy flows

a)

FROM system TO surroundings

b)

FROM surroundings TO system

3.

In an endothermic reaction, energy flows

a)

FROM system TO surroundings

b)

FROM surroundings TO system

4.
During an endothermic reaction in a beaker if we are part of the surroundings and touched the beaker, it would feel _______. 
a)
Warm
b)
Cold
5.
heat always travels from _____ to ______ objects
a)
hot to cold
b)
cold to hot
c)
cold to cold
d)
hot to hot
6.

Object A is 30 C and object B is 80 C. If they come in contact with each other, what is a reasonable final temperature for them to reach?

a)

30 C

b)

60 C

c)

80 C

d)

100 C

7.
What electron configuration matches an oxygen atom?
a)
1s22s22p63s2, 3p64s23d104p5
b)
1s22s22p4
c)
1s22s22p6
d)
1s22s22p63s23p64s23d1
8.
Which electron configuration belongs to Chlorine (Cl)?
a)
1s2 2s2 2p6 3s2 3p5
b)
1s2 2s2 2p6 3s2 3p6
c)
1s2 2s2 2p6 3s2 3p7
9.
What atom matches this electron configuration?
1s2 2s2 2p6 3s2
a)
Neon
b)
Magnesium
c)
Aluminum
d)
Potassium
10.

This could be the dot diagram of

a)

Mg

b)

Cl

c)

C

d)

O

11.

Which of the following shows a correct Lewis dot structure?

a)
b)
c)
d)
12.

How many valence electrons should Lithium have in its Lewis dot model?

a)

1

b)

2

c)

3

d)

4

13.

Based on the picture, which of the following types of electromagnetic radiation has the LOWEST energy?

a)

microwave

b)

ultraviolet

c)

infrared

d)

x-rays

14.

Describe the waves the arrow is pointing at.

a)

long wavelength / low energy

b)

long wavelength / high energy

c)

short wavelength / low energy

d)

short wavelength / high energy

15.

Which EM waves have the longest wavelength?

a)

radio

b)

x-rays

c)

ultraviolet

d)

gamma rays

16.

Which EM waves have the shortest wavelength?

a)

radio

b)

x-rays

c)

ultraviolet

d)

gamma rays

17.
How many protons does this atom have?
a)
2.5
b)
6
c)
5
d)
10.811
18.

An atom has 8 protons, 9 neutrons, and 8 electrons. What is its atomic number?

a)

8

b)

9

c)

17

d)

0

19.

An atom has 8 protons, 9 neutrons, and 8 electrons. What is its mass number?

a)

8

b)

9

c)

17

d)

0

20.

An atom has 8 protons, 9 neutrons, and 8 electrons. What is the name of this element?

a)

chlorine

b)

fluorine

c)

oxygen

d)

carbon

21.

Isotopes of an element have a different number of...

a)

Protons

b)

Neutrons

c)

Electrons

d)

Mass

22.

Ions of an element have a different number of...

a)

Protons

b)

Neutrons

c)

Electrons

d)

Mass

23.
How did Rutherford discover the proton?
a)
Cathode tube ray experiment
b)
Gold Foil Experiment
c)
Planetary Model
d)
Plum Pudding Model
24.

Rutherford and his students did experiments that showed the existence of the:

a)

quark

b)

nucleus

c)

proton

d)

electron

25.

Which scientist discovered that the nucleus contained neutrons?

a)

bohr

b)

Rutherford

c)

Dalton

d)

Chadwick

26.

Which of the following is/are conclusions based on Rutherford’s gold foil experiment?

a)

Atom is mostly empty space

b)

The nucleus is positively charged

c)

The atom has a small dense nucleus

d)

All answers are correct

27.
Elements in a ..................have similar chemical properties.  
a)
period
b)
group
c)
row
28.

Which metal is found in period 3 and group 2?

a)

Boron

b)

Magnesium

c)

Aluminum

d)

Neon

29.
Beryllium is in group number______.
a)
Group 2
b)
Group 3
c)
Group 4
d)
Group 7
30.
The periodic table has __ periods.
a)
18
b)
8
c)
2
d)
7
31.
Group 18 elements are known as the _____ _____ and have full valence shells.
a)
royal gases.
b)
supreme solids.
c)
noble gases.
d)
legit liquids.
32.
Rows on the period table are called _____ while columns are called _____.
a)
groups, families
b)
groups, periods
c)
periods, groups
d)
families, groups
33.
The periodic table has __ groups.
a)
8
b)
7
c)
18
d)
2
34.

Which color on the image of the periodic table corresponds with colorless odorless gases?

a)

Black

b)

Red

c)

Blue

d)

Orange

35.
Name group 1 on the periodic table.
a)
alkali metals
b)
alkaline earth metals
c)
noble gases
noble gases
d)
halogens
36.
Name group 2 on the periodic table.
a)
alkali metals
b)
alkaline earth metals
c)
noble gases
d)
transition metals
37.
Name group 18 on the periodic table.
a)
alkali metals
b)
alkaline earth metals
c)
transition metals
d)
noble gases
38.
Name group 17 on the periodic table.
a)
transition metals
b)
metalloids
c)
halogens
d)
alkali metals
39.

Which group of elements contains the most reactive metals?

a)

Alkali Metals

b)

Alkaline Earth Metals

c)

Halogens

d)

Noble Gases

40.

Atomic radius generally increases as we move __________.

a)

down a group and from right to left across a period

b)

up a group and from left to right across a period

c)

down a group and from left to right across a period

d)

up a group and from right to left across a period

41.

The chemical bond between a non-metal and another non-metal will be a ________ bond.

a)

metal

b)

ionic

c)

covalent

d)

polar

42.

The chemical bond between a metal and a non-metal will be a _____ bond.

a)

metal

b)

ionic

c)

covalent

d)

polar

43.
An ionic bond forms when atoms ___________ electrons.
a)
gain
b)
share
c)
increase
d)
transfer
44.
Covalent compounds
a)
Share electrons
b)
transfer electrons
c)
contain a sea of electrons
d)
conduct electricity
45.
What is the correct name for NO?
a)
Mononitrogen Monoxide
b)
Nitrogen Monoxide
c)
Mononitrogen Dioxide
d)
Nitrogen Oxide
46.
The chemical formula of sulfur hexabromide is
a)
SBr₆
b)
S₆Br
c)
S(VI)Br
d)
S6Br
47.

Which formula is for phosphorus trichloride?

a)

KCl3

b)

PCl3

c)

K3Cl

d)

P3Cl

48.

What is a positive ion called?

a)

anion

b)

cation

c)

isotope

d)

covalent

49.

What is a negative ion called?

a)

anion

b)

cation

c)

covalent

d)

isotope

50.

When an atom loses a valence electron, it becomes a _____________ ion.

a)

positive

b)

negative

c)

neutral

d)

polyatomic

51.
Elements on the LEFT side of the periodic table will most likely form:
a)
Positive ions
b)
Negative ions
c)
Neutral Ions
d)
None of these
52.
What geometry will this molecular structure have?: H2S
a)
bent
b)
tetrahedral
c)
linear
d)
trigonal pyramidal
53.
Choose the correct shape for this molecule:
a)
Trigonal planar
b)
Trigonal pyramidal
c)
Bent
d)
Tetrahedral
54.

What is the correct shape of CHCl3?

a)

Bent

b)

Trigonal pyramidal

c)

Tetrahedral

d)

Trigonal planar

55.

Determine the molecular geometry of the given structure.

a)

Trigonal Pyramidal

b)

Trigonal Bipyramidal

c)

Trigonal Planar

d)

Tetrahedral

56.

True/False: Ionic compounds can conduct electricity when dissolved in water or molten

a)

True

b)

False

57.
If two objects have reached the same temperature they have reached:
a)
a melting point.
b)
a boiling point.
c)
thermal equilibrium.
d)
specific heat.
58.
The measure of average kinetic energy of all the particles within an object is called ____________. 
a)
temperature
b)
conduction
c)
radiation
d)
heat 
59.
When 50 grams of KCl is dissolved in 100 grams of water at 50 ºC, the solution can be correctly described as:
a)
supersaturated
b)
unsaturated
c)
saturated
60.
When no more sugar will dissolve in a glass of water, the solution is...
a)
unsaturated
b)
saturated
c)
supersaturated
61.
As temperature INCREASES, the solubility of solids:
a)
increases
b)
decreases
c)
stays the same
d)
can't tell
62.

What allows water molecules to bond together?

a)

Ionic bonds

b)

Covalent bonds

c)

Hydrogen bonds

d)

Polar bonds

63.

The state of matter with the particles furthest apart is

a)

solid

b)

liquid

c)

gas

64.

The state of matter with the particles most closely together is...

a)

solid

b)

liquid

c)

gas

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