C1 Atoms, periodic table and chemical reactions

Question 1

What is an element?

Answer 1

A substance that contains only one type of atom

Question 2

What substances are found in the periodic table?

Answer 2

Elements

Question 3

Where are the metals found in the periodic table?

Answer 3

Left hand side

Question 4

What is the symbol for oxygen?

Answer 4

O

Question 5

What is the symbol for sodium?

Answer 5

Na

Question 6

Where are substances found with similar properties?

Answer 6

In the same group

Question 7

What subatomic particles are in the nucleus in an atom?

Answer 7

Protons and neutrons

Question 8

What subatomic particle goes around the nucleus in an atom?

Answer 8

Electrons

Question 9

What is the charge on a proton?

Answer 9

+1

Question 10

What is the charge on a neutron?

Answer 10

0

Question 11

What is the charge on an electron?

Answer 11

-1

Question 12

Do atoms have a charge, why?

Answer 12

No because the number of positive protons equal the number if negative electrons

Question 13

A carbon atom has 6 protons how many electrons will it have?

Answer 13

6

Question 14

What order are the elements in the modern periodic table?

Answer 14

Atomic number

Question 15

How do you calculate the number of protons in an element?

Answer 15

Equal to the atomic number

Question 16

Do you always get the same number of protons in an element?

Answer 16

Yes

Question 17

How many protons has Lithium?

Answer 17

3

Question 18

How do you calculate the number of neutrons in Lithium?

Answer 18

Mass number- atomic number = 7-3=4

Question 19

How many electrons can occupy the first (inner) shell?

Answer 19

2

Question 20

How many electrons can occupy the second shell?

Answer 20

8

Question 21

How many electrons can occupy the third shell?

Answer 21

8

Question 22

Draw the electron structure of a Lithium atom.

Answer 22

Question 23

How many outer electrons have the elements in group 1?

Answer 23

1

Question 24

How many outer electrons have the elements in group 6?

Answer 24

6

Question 25

What is the electron configuration for Lithium?

Answer 25

2,1

Question 26

What is a compound?

Answer 26

Substance containing 2 or more elements chemically bonded together

Question 27

Which electrons are involved in chemical bonding?

Answer 27

Outer electrons

Question 28

What happens to electrons when they are involved in bonding?

Answer 28

Transferred or shared

Question 29

What is the relative mass of a proton?

Answer 29

1

Question 30

What is the relative mass of a neutron?

Answer 30

1

Question 31

What is the relative mass of an electron?

Answer 31

1/ 1840 or very small

Question 32

What is the mass number?

Answer 32

Protons + neutrons

Question 33

What are the elements in group 1 called?

Answer 33

Alkali metals

Question 34

What are the elements in group 7 called?

Answer 34

Halogens

Question 35

What are the elements in group 0 called?

Answer 35

Noble gases

Question 36

Describe the reaction of lithium with oxygen.

Answer 36

Lithium goes dull and lithium oxide is produced

Question 37

Describe the reaction of sodium with water.

Answer 37

Sodium floats on the water and moves around, it melts into a ball, it fizzes giving off hydrogen gas and it turns universal indicator blue/purple.

Question 38

Neon is in which group in the periodic table?

Answer 38

Group 0

Question 39

Why is Neon unreactive?

Answer 39

Has a full outer shell of electrons

Question 40

When becoming compounds what do metals with non-metals become?

Answer 40

Ionic compounds

Question 41

When becoming compounds what do non-metals become?

Answer 41

Covalent compounds

Question 42

What happens to a metal when it becomes a charged particle?

Answer 42

It loses electrons

Question 43

What happens to a non-metal when it becomes a charged particle?

Answer 43

It gains electrons

Question 44

What charge will group 1 elements form?

Answer 44

+1

Question 45

What charge will the halogens form?

Answer 45

-1

Question 46

What type of bond is found in molecules?

Answer 46

Covalent

Question 47

In a chemical reaction are the mass of reactants always the same as the mass of products?

Answer 47

Yes

Question 48

Write a word equation and balance the following equation? Mg + O₂ → MgO

Answer 48

Magnesium + oxygen → Magnesium oxide 2Mg + O₂ → 2MgO

Question 49

Write a word equation and balance the following equation? Na + H₂O → NaOH + H₂

Answer 49

Sodium + water → Sodium hydroxide and hydrogen 2Na + 2H₂O → 2NaOH + H₂