Can't broken down into anything simpler

GCSE Atomic Structure and the Periodic Table AQA Flashcards

1

What is the chemical symbol for lead?

Na
Pb
K
Fe

2

What do potassium bromide and chlorine form?

No reaction
Potassium chloride + Bromine
Potassium iodide + Chlorine
Potassium + Chlorine

3

How do the boiling points of noble gases change?

They decrease down the group
They increase down the group
They don't change

4

What is the relative mass of an electron?

Almost 0
1
2
-1

5

Describe the reactivity of group 7 elements

Decreases down the group
Increases down the group
Stays the same

6

Group 7 elements are called....

Halogens
Noble Gases
Alkali metals
Alkali earth metals

7

Name one of the products when lithium is added to water

Oxygen
Potassium hydroxide
Hydrogen
Lithium

8

What is the name given to different atoms of the same element?

Mixtures
Ions
Molecules
Isotopes

9

How many neutrons are there in K ³⁹₁₉

19
16
20
39

10

What is an element?

Two or more parts which have not reacted
Can't broken down into anything simpler
Two or more parts which have reacted
A single entity

11

Describe the appearance of Group 1 elements

Green gases
A brown liquid
Yellow gases
Silvery, grey solids

12

What was the plum pudding model?

Tiny indivisible spheres
A ball of positive and negative charge
Mass of atom concentrated in nucleus
Electrons arranged in shells

13

How would you separate two liquids?

Distillation
Filtration
Evaporation
Crystallisation

14

What is the electron configuration of C¹²₆

2,8,2
6
2,4
2,8,8

15

Describe the reactivity of Group 1

It increases down the group
It stays the same
It decreases down the group

GCSE Atomic Structure and the Periodic Table AQA

Questions 15

GCSE Atomic Structure and the Periodic Table AQA

Questions 15