C2 Part 1 Flashcards Preview

AQA GCSE Chemistry > C2 Part 1 > Flashcards

Flashcards in C2 Part 1 Deck (11)
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1

what is the mass number on an element?

the mass number also called atomic mass number, is the total number of protons and neutrons (together known as nucleons) in an atomic nucleu

2

what is the atomic number?

the number of protons in the nucleus of an atom, which is characteristic of a chemical element and determines its place in the periodic table

3

what is a compound?

two+ elements joined together

4

what is covalent bonding?

where two elements join together, a pair of shared electrons

5

what are the first 5 alkanes?

methane
ethane
propane
butane
pentane

6

what does a displayed formula show?

the types of bonds in a simple form

7

give two examples of elements with a giant covalent structure:

diamond and silicone

8

what is the displayed formula of
N3

H
|
N
/ \
H H

9

what is a delocalised electron?

when the electron has space to move about

10

why can't electrons move from one particle top the other?

because simple molecular don't conduct electricity

11

how do ionic compounds for crys

tuhj