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

What is the symbol for oxygen?

Answer 3

O

Question 4

What is the symbol for sodium?

Answer 4

Na

Question 5

Where are substances found with similar properties?

Answer 5

In the same group

Question 6

What subatomic particles are in the nucleus in an atom?

Answer 6

Protons and neutrons

Question 7

What subatomic particle goes around the nucleus in an atom?

Answer 7

Electrons

Question 8

What is the charge on a proton?

Answer 8

+1

Question 9

What is the charge on a neutron?

Answer 9

0

Question 10

What is the charge on an electron?

Answer 10

-1

Question 11

Do atoms have a charge, why?

Answer 11

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

Question 12

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

Answer 12

6

Question 13

What order are the elements in the modern periodic table?

Answer 13

Atomic number

Question 14

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

Answer 14

Equal to the atomic number

Question 15

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

Answer 15

Yes

Question 16

How do you calculate the number of neutrons in Lithium?

Answer 16

Mass number- atomic number = 7-3=4

Question 17

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

Answer 17

2

Question 18

How many electrons can occupy the second shell?

Answer 18

8

Question 19

How many electrons can occupy the third shell?

Answer 19

8

Question 20

Draw the electron structure of a Lithium atom.

Answer 20

Question 21

How many outer electrons have the elements in group 1?

Answer 21

1

Question 22

How many outer electrons have the elements in group 6?

Answer 22

6

Question 23

What is the electron configuration for Lithium?

Answer 23

2,1

Question 24

What is a compound?

Answer 24

Substance containing 2 or more elements chemically bonded together

Question 25

Which electrons are involved in chemical bonding?

Answer 25

Outer electrons

Question 26

What happens to electrons when they are involved in bonding?

Answer 26

Transferred or shared

Question 27

What is the relative mass of a proton?

Answer 27

1

Question 28

What is the relative mass of a neutron?

Answer 28

1

Question 29

What is the relative mass of an electron?

Answer 29

1/ 1840 or very small

Question 30

What is the mass number?

Answer 30

Protons + neutrons

Question 31

What are the elements in group 1 called?

Answer 31

Alkali metals

Question 32

What are the elements in group 7 called?

Answer 32

Halogens

Question 33

What are the elements in group 0 called?

Answer 33

Noble gases

Question 34

Describe the reaction of lithium with oxygen.

Answer 34

Lithium goes dull and lithium oxide is produced

Question 35

Describe the reaction of sodium with water.

Answer 35

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 36

Neon is in which group in the periodic table?

Answer 36

Group 0

Question 37

Why is Neon unreactive?

Answer 37

Has a full outer shell of electrons

Question 38

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

Answer 38

Ionic compounds

Question 39

When becoming compounds what do non-metals become?

Answer 39

Covalent compounds

Question 40

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

Answer 40

It loses electrons

Question 41

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

Answer 41

It gains electrons

Question 42

What charge will group 1 elements form?

Answer 42

+1

Question 43

What charge will the halogens form?

Answer 43

-1

Question 44

What type of bond is found in molecules?

Answer 44

Covalent

Question 45

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

Answer 45

Yes

Question 46

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

Answer 46

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

Question 47

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

Answer 47

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