C1 & C2 - Atomic Structure & The Periodic Table

Question 1

What did John Newlands notice?

Answer 1

-He noticed that the properties of every eighth element seemed similar

Question 2

What do the number of electrons determine?

Answer 2

-The number of electrons in the out shell dictate the properties

Question 3

How are the elements sorted into groups?

Answer 3

-The group number in the periodic table equals the number of electrons in the outer shell

Question 4

Why are group 0 elements unreactive?

Answer 4

-The noble gases (group 0) have a full outer shell and are unreactive

Question 5

Does the reactivity increase or decrease as you go down group 1?

Answer 5

-Increase

Question 6

What is the mass and charge of a proton?

Answer 6

• 1

- Positive

Question 7

What is the mass and charge of a neutron?

Answer 7

• 1

- Neutral

Question 8

What is the mass and charge of a electron?

Answer 8

• 0

- Negative

Question 9

What is the atomic mass?

Answer 9

-Protons + neutrons

Question 10

What is the atomic number?

Answer 10

-Number of protons

Question 11

What are isotopes?

Answer 11

• Same number of protons and electrons

- Different number of neutrons

Question 12

What is conversation of mass?

Answer 12

-We cannot create or destroy atoms in a chemical reaction, we can simply change how they are joined together

Question 13

What ions do transition metals form?

Answer 13

-When transition metals do react, they lose electrons, and so form positive ions.

Question 14

What are three separation techniques?

Answer 14

• Distillation
• Crystallisation
• Chromatography
• Filtration