c1- atomic structure

Question 1

what are the tiny particles that all substances are
Made Of called?

Answer 1

atoms

Question 2

some substances are made up of only one type of atom, these are called ________.

Answer 2

elements

Question 3

what is a mixture made up of?

Answer 3

two or more substances that are not chemically combined

Question 4

how are mixtures seperated?

Answer 4

filtration
crystallisation
distillation

Question 5

what are isotopes?

Answer 5

atoms of the same element with a different number of neutrons

Question 6

how many electrons can the inner shell hold?

Answer 6

2

Question 7

how many electrons can the outer shell hold?

Answer 7

8

Question 8

what does the number of electrons in the outer shell of an element determine?

Answer 8

the reactivity

Question 9

what did thompsons plum pudding model look like?

Answer 9

a sphere of positive charge with negative electrons

Question 10

what is an atom made up of?

Answer 10

a nucleus containing protons and neutrons in the centre, surrounded by rings of electrons