stud
bud
Sign up
Log in
Home
Library
Explore
SAT
More
Y9 Exam Revision 1, NZ Flashcards | StudBud
Explore
/
Y9 Exam Revision 1, NZ
Y9 Exam Revision 1, NZ
12 terms
·
StudBud Administration
·
173 plays
Basic atomic structure and compounds, mixtures, elements
Flashcards
12 cards
F
Practice quiz
P
Host live
L
Questions
12
Answers
1
The definition of a compound is:
2 or more elements mixed
multiple substances
2 or more different elements chemically joined
A single element
2
Write the formula of sodium oxide. Na
+1
, O
2-
NaO
Na2O
2NaO
Na2O
3
Which is a mixture?
air
blood
pure water
carbon dioxide
4
Write the formula for aluminium chloride. Al
3+
, Cl
-1
Al3Cl
AlCl3
Al3Cl3
AlCl
5
which of the following is compound?
water
air
carbon dioxide
oxygen
6
The 8th element in the period table is oxygen. The electron arrangement for oxygen is?
6,2
2,6
2,4,2
2,8
7
Which of the following is an element?
air
oxygen
carbon dioxide
water
8
In the diagram, the number 16 is called the???
mass number
neutron number
atomic number
proton number
9
Harry, he likes beer but in cups not over full. what is beer?
A bitter bevvy
A poor person's wine
An alcoholic beverage
Beryllium
10
Which of the following is NOT a major branch of science
Physics
Chemistry
Philately
Astronomy
11
The vertical columns in the periodic table are called??
vertical elements
groups
chemical columns
periods
12
Write the correct formula for sodium nitride, Na
+1
, N
-3
Na3N
NaN3
3NaN
Na3N
