Chapter 1 Atomic Structure And The Periodic Table

Question 1

What is an element?

Answer 1

An element is a substance that cannot be broken down chemically.

Question 2

What is a compound?

Answer 2

A compound is a substance that contains at least 2 different types of elements combined chemically.

Question 3

What are mixtures?

Answer 3

Mixtures are many substances bonded together, mixtures are easy to separate by using: filtration or chromatography or distillation or crystallisation.

Question 4

What is fractional distillation?

Answer 4

Fractional distillation is the process of separating Hydrocarbons by heating them up. When it goes up the tank the Hydrocarbons cool down. Hydrocarbons at each state can be used for several things.

Question 5

J.J Tomphson discovered…

Answer 5

The electron. By the plum pudding experiment

Question 6

James Chadwick discovered the….

Answer 6

Neutron

Question 7

What did Niels Bohr think

Answer 7

The electrons orbited around the nucleus on an invisible line called shells.

Question 8

What charge and mass do the following sub-atomic particles have?

• Electrons
• Neutrons
• Protons

Answer 8

Electrons: -1 and 0
Protons: +1 and 1
Neutrons: = and 1

Question 9

What are Isotopes?

Answer 9

Isotopes are elements contain a higher quantity of neutrons tan protons and electrons. These elements will started to decay by emitting radiation.

Question 10

In an atomic table what are the periods and the rows

Answer 10

You know that shit Oscar, no need for explanation

Question 11

What are the difference of the physical properties of metals and non-metals?

Answer 11

Metals: Shinny, hard, high density, high melting point, high tensile strength, good conductors of heat and good electrical conductor.

Non-metals: Dull, low density, brittle, low boiling point, low tensile strength, bad conductors of heat and bad electrical conductor.

Question 12

How do metals and non-metals combine with each other?

Answer 12

Ionic compound.

Question 13

Facts about Group 0 elements.

• Reactive or not reactive. (If not reactive, why does this occur)
• Gases, metals or non-metals.
• Low or high boiling point.

Answer 13

• Non-reactive (they have a full outer shell, no need of anymore electrons)
• Gases.
• Low boiling points

Question 14

What are group 1 metals called?

Answer 14

Alkali’s

Question 15

What elements are more dense than water in group 1?

Answer 15

Lithium, Potassium, Sodium.

Question 16

What gas is given off when elements from group 1 with water.

Answer 16

Hydrogen.

Question 17

Physical properties through reaction with element from group 1 reacting with water

Answer 17

• Decrease of mass.
• Soft.
• Fizz
• Heats up
• Smoky.
• Cloudy.

Question 18

What are group 7 called?

Answer 18

Halogens.

Question 19

Is it more reactive going up or down the column? For halogens (Group 7)

Answer 19

Upwards.

Question 20

What do group 7 (Halogens) elements react with?

Answer 20

Group 1 (Alkali).

Question 21

What are transition metals and where are they found?

Answer 21

Transition metals are metals that have metallic properties. They are found in the middle of the periodic table, in between groups 2 and 3.

Question 22

What are catalysts?

Answer 22

A transition metals and its compounds are often catalysts.