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Review Chem Semester 1 2023/24

Total questions: 80

Worksheet time: 3hrs 16mins

Name
Class
Date
1.

Sophia, Oliver, and Luna are having a debate about the Modern Periodic Table of Elements. They want to know how it is arranged. Can you help them figure out how the Modern Periodic Table of Elements is arranged by?

a)

atomic mass

b)

atomic number

c)

valence electrons

d)

number of isotopes

2.

Jackson, Arjun, and Kai are playing a game about elements. They come across the number 6. What does this number represent?

a)

atomic mass

b)

atomic number

c)

element name

d)

chemical symbol 

3.

Nora, Zoe, and Mia are playing a chemistry trivia game. They come across the number 12.011. What does this number represent?

a)

atomic mass

b)

atomic number

c)

element name

d)

chemical symbol 

4.

During a chemistry class, Priya, James, and Evelyn were discussing the Periodic Table. They were trying to figure out what is found on the Periodic Table. Can you help them?

a)

Compounds

b)

Elements

c)

Mixtures

5.

Aria, Oliver, and Olivia are having a debate about the basic structural unit of matter. What do you think they should agree upon?

a)

atom

b)

matter

c)

element

d)

nucleus

6.

Maya, Abigail, and Nora are having a debate about atoms. They want to know which subatomic particle is positively charged and contained in the nucleus of an atom. Can you help them?

a)

proton

b)

neutron

c)

electron

d)

matter

7.

Abigail, Aiden, and Avery are having a debate about subatomic particles. They are discussing a particle that is contained in the nucleus of an atom, has the same mass as a proton, but no electrical charge. What particle are they talking about?

a)

proton

b)

neutron

c)

electron

d)

matter

8.

James, Abigail, and Kai are having a debate about subatomic particles. They're discussing a negatively charged particle that orbits the nucleus of an atom. What is this particle called?

a)

proton

b)

neutron

c)

electron

d)

matter

9.

Imagine Grace, Isla, and Aiden are playing a game of 'Element Detective'. They need to find out the one or two letters that represent the name of an element. What is this called?

a)

element name

b)

element symbol

c)

atomic number

d)

atomic mass

10.

Imagine Sophia, Kai, and Abigail are playing a game of 'Periodic Table Bingo'. They need to identify a grouping of elements based on similar properties, arranged by columns in the periodic table, also known as a group. What would they call this?

a)

family

b)

period

c)

row

d)

isotope

11.

Ethan, Aria, and Nora are playing a game of 'Elementary Trivia'. Ethan draws a card and reads out loud, 'What do we call a row on the Periodic Table of Elements?'

a)

family

b)

period

c)

row

d)

isotope

12.

Isla, Anika, and Avery are on a science adventure! They discovered that most of the mass of an atom is found in its _____. Can you help them solve this mystery?

a)

electron cloud

b)

nucleus

c)

atomic number

d)

empty space

13.

Oliver, Benjamin, and William are having a debate. Which of these options is an electron?

a)

A

b)

B

c)

C

14.

Aiden, Maya, and Anika are playing a game to identify elements based on their atomic structure. They come across an image of an element and need to figure out the number of protons it contains. Can you help them?

a)

14

b)

7

c)

15

d)

18

15.

Noah, William, and Rohan are playing a game to identify elements on the periodic table. They come across the metalloids and need to figure out which color on the image of the periodic table corresponds to them. Can you help them out?

a)

bright yellow

b)

gold

c)

teal

d)

light blue

16.

Abigail, Aiden, and Rohan are having a debate about the periodic table. They want to know which type of element is mostly found in the periodic table. Can you help them?

a)

Metals

b)

Nonmetals

c)

Metalloids

17.

Aria, Emma, and Olivia are playing a game of 'Elementary Zigzag'. They noticed that certain elements are always to the LEFT of the zigzag. Can you help them identify these elements?

a)

metals

b)

nonmetals

c)

metalloids

18.

Emma, Ava, and Daniel are playing a game of 'Guess the Element'. They are trying to figure out which elements are colored red. Can you help them?

a)

nonmetals

b)

metals

c)

metalloids

19.

Abigail, Sophia, and Aiden are having a heated debate. They are discussing about Silicon and its properties. They all agree that Silicon is a semiconductor and has properties of both metals and nonmetals. But they are stuck on what type of element Silicon is. Can you help them out? 

a)

Metal

b)

Nonmetal

c)

Metalloid

d)

Pretty

20.

Anika, Michael, and Liam are having a debate about metals. They all agree on certain properties of metals, but there's one they can't agree on. Which of these properties is NOT typically associated with metals, causing the disagreement?

a)

malleable

b)

conductors

c)

brittle 

d)

shiny

21.

Convert the following number to Scientific Notation:

9,000,000

a)

9x10^6

b)

0.9x10^7

c)

9x10^-7

d)

9x10^-6

22.

Convert the following number to Standard Notation:

2.5×1032.5\times10^3  

a)

2,500

b)

25,000

c)

2.500

d)

0.0025

23.

Convert the following number to Scientific Notation:

0.0000378

a)

37.8x10^-6

b)

3.78x10^5

c)

0.378x10^-6

d)

3.78x10^-5

24.

Convert the following number to Standard Notation:

4×1054\times10^5  

a)

0.40000

b)

40,000

c)

400,000

d)

0.00004

25.

Convert the following number to Scientific Notation:

670,400

a)

0.6704x10^-6

b)

6.704x10^5

c)

0.6704x10^6

d)

6.704x10^-5

26.

Convert the following number to Standard Notation:

3.2456×10−83.2456\times10^{-8}  

a)

0.00032456

b)

3.24560000

c)

0.000000032456

d)

324,560,000

27.

Convert the following number to Scientific Notation:

0.00000089

a)

0.89x10^6

b)

8.9x10^7

c)

8.9x10^-7

d)

0.89x10^-6

28.

Convert the following number to Standard Notation:

9.7×1079.7\times10^7  

a)

0.00000097

b)

97,000,000

c)

970,000,000

d)

9.7000000

29.

Convert the following number to Scientific Notation:

570,000,000

a)

5.7x10^8

b)

0.57x10^9

c)

5.7x10^-8

d)

0.57x10^-9

30.

Convert the following number to Standard Notation:

8×1028\times10^2  

a)

0.08

b)

8.00

c)

0.008

d)

800

31.

How many significant figures are in the following number?

34.900

(a)  

32.

How many significant figures are in the following number?

100.00

(a)  

33.

How many significant figures are in the following number?

100

(a)  

34.

How many significant figures are in the following number?

0.00034030

(a)  

35.

How many significant figures are in the following number?

200200

(a)  

36.
How do covalent bonds form?
a)
Donating & receiving valence e- between atoms.
b)
Opposite slight charges attract each other between compounds.
c)
Scientists are still not sure how they form.
d)
Sharing valence e- between atoms.
37.
What two types of atoms make a covalent bond?
a)
2 Nonmetals
b)
1 Nonmetal and 1 Metal
c)
2 Metals
d)
2 Noble Gases
38.
What is the correct name for C4H6?
a)
Carbon Hexahydride
b)
Pentacarbon Pentahydride
c)
Hexacarbon Tetrahydride
d)
Tetracarbon Hexahydride
39.
What is the correct name for NO?
a)
Mononitrogen Monoxide
b)
Nitrogen Monoxide
c)
Mononitrogen Dioxide
d)
Nitrogen Oxide
40.
What is the formula for Tricarbon Octahydride?
a)
Ca3O
b)
C2H8
c)
C3H8
d)
Ca3H8
41.
P2O5
a)
Phosphorus Oxide
b)
Pentaphosphorus Dioxide
c)
Diphosphorous pentoxide
d)
Phosphoric Oxygen
42.
PBr5
a)
Phosphorus Bromide
b)
Phosphorus Pentabromide
c)
Pentaphosphorus bromide
d)
Phosphorus Bromine
43.
As4O10
a)
arsenic oxide
b)
quadarsenic decoxide
c)
tetraarsenic decoxide
d)
arsenic decoxide
44.

The name of FeCl₂ is

a)

iron chloride

b)

iron (II) chloride

c)

iron (I) chloride

d)

iron dichloride

45.

LiBr is called

a)

lithium bromine

b)

lithium (I) bromine

c)

lithium bromide

d)

lithuim (I) bromide

46.

Which of these combinations is an ionic compound made of?

a)

Metal and Metal

b)

Nonmetal and Nonmetal

c)

Metal and Nonmetal

d)

Cation and Cation

47.

Which of the following combinations would need roman numerals in the name?

a)

potassium + fluorine

b)

beryllium + oxygen

c)

boron + iodine

d)

gold + oxygen

48.
zinc fluoride
a)
ZnF2
b)
ZnF
c)
Zn2F
d)
Zn2F4
49.
sliver phosphide
a)
Ag3P
b)
Ag3PO4
c)
Ag3PO3
d)
AgP
50.
Name this compound: 
NaBr
a)
Bromide sodide
b)
Sodium bromide
c)
Sodium bromate
d)
Sodium bromite
51.
Name this compound: 
KF
a)
Potassium fluoride
b)
Potassium fluorite
c)
Fluorine potasside 
d)
Potassium fluorate
52.

What is the ionic compound formed between calcium and bromine?

a)
CaBr
b)
CaBr2
c)
Ca2Br
d)
Ca2Br
53.

How many electrons can the d sublevel hold?

a)
8
b)
10
c)
2
d)
4
54.

How many electrons can the d sublevel hold?

a)
8
b)
10
c)
2
d)
4
55.

What is the maximum number of electrons that an s orbital can have?

a)

1 electron

b)

2 electrons

c)

3 electrons

d)

4 electrons

56.

How many electrons can the p sublevel hold?

a)
8
b)

6

c)
2
d)
4
57.

What is the maximum number of electrons that an f orbital can have?

a)

11 electrons

b)

14 electrons

c)

13 electrons

d)

12 electrons

58.

How many electrons can the third energy level hold?

a)

2

b)

18

c)
8
d)
0
59.

What electron configuration matches an oxygen atom?

a)

1s22s22p63s2, 3p64s23d104p5

b)

1s22s22p4

c)

1s22s22p6

d)

1s22s22p63s23p64s23d1

60.

Identify the Electron Configuration for Aluminum (Al)

a)

1s2 2s2 2p6 3s2 3p1

b)

1s2 2s2 2p6 3s2 3p3

c)

1s2 2s2 2p6 3s2 4p1

61.

What atom matches this electron configuration?

1s22s22p63s23p64s23d10

a)

Zinc

b)

Copper

c)

Nickel

d)

Germanium

62.

What element has the electron configuration 

1s22s22p31s^22s^22p^3  

a)

Nitrogen

b)

Oxygen

c)

Magnessium

d)

Carbon

63.
This orbital diagram represents:  
a)
C
b)
B
c)
N
d)
O
64.

Which orbital is displayed correctly?

a)

A

b)

B

c)

C

d)

D

65.
What is incorrect about this orbital diagram?
a)
Both arrows in the 2p box should be pointing up
b)
There is nothing incorrect with this diagram
c)
In the there should only be 1 orbital in the first 2p box and one in the 2nd 2p box
d)
All the arrows should be pointing up.
66.

Which element has electronic configuration of 1s2 2s2 2p6 3s2 3p2

a)

C

b)

Si

c)

Mg

d)

Be

67.

After 3p orbital has been filled with electron, why the electron is added to the 4s orbital instead of 3d orbital?

a)

difference in shape of orbital

b)

the first ionisation is increasing across the period

c)

the first ionisation is decreasing going down the group

d)

due to orbital energy level

68.

Which element has a configuration of 1s2 2s2 2p6?

a)

Neon

b)

Helium

c)

Argon

d)

Krypton

69.
The electron configuration of an atom is 1s22s22p6.  The number of electrons in the atom is 
a)
3
b)
6
c)
8
d)
10
70.
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
71.

64,600,000 cm = ____ km

a)

646

b)

64.6

c)

6,460

d)

6.46

e)

64,600

72.

425,000 mL = ___ L

a)

425

b)

42.5

c)

4,250

d)

4.25

e)

42,500

73.

0.000238 m = ___ cm

a)

0.0238

b)

0.238

c)

2.38

d)

0.00238

e)

0.000238

74.

6.81 cm = ___ m

a)

0.0681

b)

0.681

c)

0.00681

d)

0.000681

e)

6.81

75.

0.00817 km = ___ cm

a)

817

b)

81.7

c)

8.17

d)

0.817

e)

8,170

76.

14,700 cm = ___ m

a)

147

b)

14.7

c)

1,470

d)

1.47

e)

147,000

77.

0.0079 cm = mm

a)

0.079

b)

0.79

c)

7.9

d)

0.0079

e)

0.00079

78.

0.00738 L = ___ mL

a)

7.38

b)

73.8

c)

0.738

d)

0.0738

e)

738

79.

0.0000000332 km = ___ mm

a)

0.0332

b)

0.332

c)

3.32

d)

0.00332

e)

0.000332

80.

60,800 cm = ___ m

a)

608

b)

6,080

c)

60.8

d)

608,000

e)

6.08

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