Periodic Table of Elements

Question 1

Define “periodic table”.

Answer 1

A list of all the elements arranged in a table.

Question 2

Define “element”.

Answer 2

A pure substance which cannot be broken down.

Question 3

Define “atomic number”.

Answer 3

The number of protons in one atom of an element.

Question 4

Name the only two elements that are liquids in the periodic table.

Answer 4

1. Mercury (Hg).

2. Bromine (Br).

Question 5

Where are the metals, non-metals, and semi-metals located in the table?

Answer 5

Metals: Left-hand side.
Non-metals: Right-hand side.
Semi-metals: In between the metals and non-metals.

Question 6

Name the first 10 elements & symbols of the Periodic table.

Answer 6

1. Hydrogen (H).
2. Helium (He).
3. Lithium (Li).
4. Beryllium (Be).
5. Boron (B).
6. Carbon (C).
7. Nitrogen (N).
8. Oxygen (O).
9. Fluorine (F).
10. Neon (Ne).

Question 7

Name the elements and symbols of 11-20 on the Periodic table.

Answer 7

11. Soduim (Na).
12. Magnesium (Mg).
13. Aluminium (Al).
14. Silicon (Si).
15. Phosphorus (P).
16. Sulfur (S).
17. Chlorine (Cl).
18. Argon (Ar).
19. Potassium (K).
20. Calcium (Ca).

Question 8

Define “ductile”.

Answer 8

Can be drawn out into a thin wire.

Question 9

Define “malleable”.

Answer 9

Can be hammered or pressed into shape without breaking.

Question 10

Metals are usually sh______ and s______ and have _____ melting and boiling points. They are also d______ and m________.

Answer 10

1. Shiny.
2. Solid.
3. High.
4. Ductile.
5. Malleable.

Question 11

Define “non-metals”.

Answer 11

Any element that does not conduct heat or electricity.

Question 12

Define “noble gas”.

Answer 12

A stable gas that doesn’t combine with other elements.

Question 13

Define “semi-metal”.

Answer 13

An element that shares some properties with metals and some with non-metals.

Question 14

Define “semi-conductor”.

Answer 14

An element/substane that only conducts electricity when it is heated up.