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Atomic Structure and Periodic Table

Total questions: 40

Worksheet time: 32mins

Name
Class
Date
1.

Elements in the same group or family have _____________.

a)

the same number of valence electrons and different properties.

b)

the same number of valence electrons and similar properties

c)

different number of valence electrons and similar properties.

d)

different number of valence electrons and different properties.

2.

Which class of elements are malleable, ductile, shiny when clean and polished, good conductors of heat and electricity, and reacts with acids to form hydrogen gas?

a)

metals

b)

nonmetals

c)

metalloids

d)

ions

3.

What is an atom or bonded group of atoms that has a positive or negative charge?

a)

ion

b)

atom

c)

metal

d)

nonmetal

4.

Where are metalloids located on the Periodic Table?

a)

In the s block.

b)

In the f block.

c)

In the d block.

d)

The elements that touch the staircase except aluminum.

5.

In the modern periodic table, elements are arranged in order of ___.

a)

atomic mass

b)

increasing reactivity

c)

increasing atomic number

d)

decreasing atomic number

6.

Based on chemical properties, iodine (I) belongs in the same group as ___.

a)

Helium and Neon

b)

Iron and Zinc

c)

Hydrogen and Lithium

d)

Bromine and Chlorine

7.

What are 3 broad classes of elements?

a)

metals, nonmetals, and metalloids

b)

solids, liquids, and gases

c)

small, medium, and large

d)

helium, neon, and argon

8.

The colors in the diagram indicate what?

a)

metalloids -- elements that act like both metals and nonmetals

b)

periods -- elements with electrons in the same level

c)

chemical families -- elements with similar properties

9.

The elements colored yellow are ---

a)

metals

b)

nonmetals

c)

metalloids

d)

periods

10.

The elements colored blue are ---

a)

metals

b)

nonmetals

c)

metalloids

d)

groups

11.

Which element is located in group 3, period 2?

a)

magnesium

b)

boron

c)

scandium

d)

lithium

12.

Which of these elements is a metalloid in period 4?

a)

carbon

b)

titanium

c)

potassium

d)

arsenic

13.
Elements in a ..................have similar chemical properties.  
a)
period
b)
group
c)
row
14.
As you move down a group, atomic radius increases because - 
a)
you add more and more neutrons
b)
you add more and more protons
c)
you add more and more shells (energy levels)
d)
you add more atomic mass
15.
Elements in the same column of the periodic table always have the same # of _______ as one another.
a)
Protons
b)
Neutrons
c)
Electrons
d)
Valence Electrons
16.
a)
2
b)
3
c)
5
17.
How many valence electrons are in an atom of K?
a)
3
b)
8
c)
4
d)
1
18.

Which of the following will have similar properties?

a)

O, S, Se

b)

O, F, Ne

c)

N, Ne, Na

d)

H, K, P

19.

How many periods are on the periodic table?

a)

5

b)

6

c)

7

d)

8

20.

Find an element with similar chemical properties to Barium (Ba).

a)

Ca an Ra, because they are in the same group and have similar chemical properties.

b)

Cs and La, b/c they are in the same period number.

c)

Ca and Y, b/c they are 90 degree angle and have similiar properties.

21.

Match the following

a)

lithium

1.

2 energy levels

b)

helium

2.

1 energy level

c)

aluminum

3.

3 energy levels

d)

bromine

4.

4 energy levels

e)

strontium

5.

5 energy levels

22.

Element symbols have _____ capital letter(s).

a)

1

b)

2

c)

3

d)

4

23.

Compound formulas have ____ capital letter(s).

a)

1

b)

2

c)

3

d)

more than 1

24.

What is the atomic number?

a)

the number of protons in the nucleus

b)

the number of protons and neutrons in the nucleus

c)

the number of neutrons in the nucleus

d)

the number of protons in the energy levels

25.

What is the mass number?

a)

the number of protons in the nucleus

b)

the number of protons and neutrons in the nucleus

c)

the number of neutrons in the nucleus

d)

the number of protons and electrons in the atom

26.

What is the atomic number of this atom?

a)

1

b)

3

c)

4

d)

7

27.

What is the mass number of this atom?

a)

1

b)

3

c)

4

d)

7

28.
Most of the mass in an atom is made up of _____________________?
a)
protons and electrons
b)
protons and neutrons
c)
neutrons and electrons
d)
electrons and quarks
29.
In order for an atom to be neutral what has to be true?
a)
The atom has more protons than neutrons
b)
The atom has more neutrons than protons
c)
The atom has the same number of protons and neutrons
d)
The atom has the same number of protons and electrons
30.
What does the C represent?
a)
atomic mass
b)
atomic number
c)
element name
d)
chemical symbol 
31.

What does the 6 represent?

a)

Atomic mass

b)

atomic number

c)

chemical symbol

d)

element name

32.
How is the number of neutrons in the nucleus of an atom calculated?
a)
Add the number of e- and p+ together
b)
Subtract the number of e- from p+
c)
Subtract the number of p+ from the mass number
d)
Add the mass number to the number of e-
33.
If an atom has 12 positively charged subatomic particles, which of the following must it also have to be considered a neutral atom?
a)
12 neutrons
b)
12 electrons
c)
12 protons
d)
24 protons and neutrons
34.

An atom has 10 protons, 15 neutrons and 10 electrons what is its mass number.

a)

20

b)

10

c)

35

d)

25

35.

How many electrons does this atom have?

a)

2

b)

4

c)

6

d)

10

36.
The atomic number of an element that has 9 protons, 9 electrons, and 10 neutrons is _____.
a)
9
b)
10
c)
19
d)
28
37.
An element with a mass number of 11 and an atomic number of 5 has how many neutrons?
a)
11
b)
5
c)
6
d)
16
38.
Where is most of the mass in an atom located?
a)
in the nucleus
b)
in the protons
c)
in the neutrons
d)
in the electrons
39.

Which of the following determines the identity of an element?

a)

number of protons

b)

atomic mass

c)

number of neutrons

d)

number of shells

40.
An atom has an atomic number of 15 and a mass number of 31. How many protons are there in the atom?
a)
15
b)
31
c)
16
d)
47

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