Chemistry Paper 1 Revision Complete Questions and Answers – 100% Solved
A carbon atom has 6 protons how many electrons will it have? - ✔✔✔-6
Atom - ✔✔✔-Smallest particle of an element
Chromotography technique - ✔✔✔-Paper chromatography is used to separate mixtures of
soluble substances. These are often coloured substances such as food colorings, inks, dyes or
plant pigments.
Describe the reaction of lithium with oxygen. - ✔✔✔-Lithium goes dull and lithium oxide is
produced
Describe the reaction of sodium with water. - ✔✔✔-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.
Do atoms have a charge, why? - ✔✔✔-No because the number of positive protons equal the
number if negative electrons
Do you always get the same number of protons in an element? - ✔✔✔-Yes
Draw the electron structure of a Lithium atom. - ✔✔✔-
How do you calculate the number of neutrons in Lithium? - ✔✔✔-Mass number-atomic
number = 7-3=4
How do you calculate the number of protons in an element? - ✔✔✔-Equal to the atomic
number
How many electrons can occupy the first (inner) shell? - ✔✔✔-2
, Chemistry Paper 1 Revision Complete Questions and Answers – 100% Solved
How many electrons can occupy the second shell? - ✔✔✔-8
How many electrons can occupy the third shell? - ✔✔✔-8
How many outer electrons have the elements in group 1? - ✔✔✔-1
How many outer electrons have the elements in group 6? - ✔✔✔-6
How many protons has Lithium? - ✔✔✔-3
In a chemical reaction are the mass of reactants always the same as the mass of products? -
✔✔✔-Yes
Isotope - ✔✔✔-each of two or more forms of the same element that contain equal numbers of
protons but different numbers of neutrons in their nuclei, and hence differ in relative atomic
mass but not in chemical properties; in particular, a radioactive form of an element.
Neon is in which group in the periodic table? - ✔✔✔-Group 0
What are the elements in group 0 called? - ✔✔✔-Noble gases
What are the elements in group 1 called? - ✔✔✔-Alkali metals
What are the elements in group 7 called? - ✔✔✔-Halogens
What charge will group 1 element form? - ✔✔✔-+1
A carbon atom has 6 protons how many electrons will it have? - ✔✔✔-6
Atom - ✔✔✔-Smallest particle of an element
Chromotography technique - ✔✔✔-Paper chromatography is used to separate mixtures of
soluble substances. These are often coloured substances such as food colorings, inks, dyes or
plant pigments.
Describe the reaction of lithium with oxygen. - ✔✔✔-Lithium goes dull and lithium oxide is
produced
Describe the reaction of sodium with water. - ✔✔✔-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.
Do atoms have a charge, why? - ✔✔✔-No because the number of positive protons equal the
number if negative electrons
Do you always get the same number of protons in an element? - ✔✔✔-Yes
Draw the electron structure of a Lithium atom. - ✔✔✔-
How do you calculate the number of neutrons in Lithium? - ✔✔✔-Mass number-atomic
number = 7-3=4
How do you calculate the number of protons in an element? - ✔✔✔-Equal to the atomic
number
How many electrons can occupy the first (inner) shell? - ✔✔✔-2
, Chemistry Paper 1 Revision Complete Questions and Answers – 100% Solved
How many electrons can occupy the second shell? - ✔✔✔-8
How many electrons can occupy the third shell? - ✔✔✔-8
How many outer electrons have the elements in group 1? - ✔✔✔-1
How many outer electrons have the elements in group 6? - ✔✔✔-6
How many protons has Lithium? - ✔✔✔-3
In a chemical reaction are the mass of reactants always the same as the mass of products? -
✔✔✔-Yes
Isotope - ✔✔✔-each of two or more forms of the same element that contain equal numbers of
protons but different numbers of neutrons in their nuclei, and hence differ in relative atomic
mass but not in chemical properties; in particular, a radioactive form of an element.
Neon is in which group in the periodic table? - ✔✔✔-Group 0
What are the elements in group 0 called? - ✔✔✔-Noble gases
What are the elements in group 1 called? - ✔✔✔-Alkali metals
What are the elements in group 7 called? - ✔✔✔-Halogens
What charge will group 1 element form? - ✔✔✔-+1
