Atomic Structure, Elements, Periodic Table

1.

Multiple Choice

30 sec

1 pt

1. The atomic number identifies the number of __________.

protons and electrons

electrons and neutrons

atoms

neutrons and protons

2.

Multiple Choice

30 sec

1 pt

2. Subatomic particles that have a negative charge

electrons

atoms

protons

neutrons

3.

Multiple Choice

30 sec

1 pt

3. The number 16 for the atomic element sulfur is the

ionic number

atomic mass

isotope

atomic number

4.

Multiple Choice

30 sec

1 pt

4. An elements in group 18 are non reactive, stable, and inert because

they have 3 valence electrons and a full outer shell

they have no valence electrons and a full outer shell

they have 8 valence electrons and a full outer shell

5.

Multiple Choice

30 sec

1 pt

5. The group number equals?

The number of energy levels

The number of neutrons

The number of protons

The number of valence electrons

6.

Multiple Choice

30 sec

1 pt

Elements in the same ____________ have similar chemical properties

period

staircase

group

row

7.

Multiple Choice

30 sec

1 pt

Why is group 1 highly reactive?

It has the most energy levels

It has 1 valence electrons

It has the same number of protons

It has the same number of electrons

8.

Multiple Choice

30 sec

1 pt

Which of the following would change the name of the element if one was added or removed from the atom?

neutrons

protons

valence electrons

electrons

9.

Multiple Choice

30 sec

1 pt

The elements Potassium, Vanadium, Manganese and Calcium are examples of

Members of a period

Members of a family

Molecules

Gases

10.

Multiple Choice

30 sec

1 pt

Which element has a mass number greater than nitrogen, but less than neon?

Oxygen

Lithium

Sodium

Helium

11.

Multiple Choice

30 sec

1 pt

Which of the following elements is a metalloid?

Sulfur

Silicon

Iron

Copper

12.

Multiple Choice

30 sec

1 pt

Which of the following elements is malleable?

Iron

Carbon

Hydrogen

Sulfur

13.

Multiple Choice

30 sec

1 pt

What is the mass number of Potassium (K) atom that has 20 neutrons?

18

20

19

39

14.

Multiple Choice

30 sec

1 pt

In an atom, the number of protons is equal to the number of ____________.

energy levels

neurons

electrons

neutrons

15.

Multiple Choice

30 sec

1 pt

The atom that has an atomic mass of 12 has ____________ protons.

6

8

1

4

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