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SNC1D Chemistry Review
SNC1D Chemistry Review
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SNC1D Science Unit A: Chemistry Topic: Atoms, Elements and Compounds
Flashcards
21 cards
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Practice quiz
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Questions
21
Answers
1
The maximum number of electrons that fit into the first shell is:
18
8
any number
2
2
Salt water is an example of a:
solution
element
compound
mechanical mixture
3
An atom that is neutral has the same number of:
electrons and protons
electrons and neutrons
neutrons and protons
4
Atoms of the same type with different numbers of neutrons are called:
isotopes
different elements
ions
neutrinos
5
Electrons are found in:
rings
shells
outer space
circles
6
Radioactive particles bouncing off gold foil indicated the presence of a(n):
neutron
atom
nucleus
electron shell
7
Which of the following is not an indication of a chemical change? A new:
precipitate
colour
state of matter
odour
8
2Pb(NO
3
)
2
contains:
6 oxygen atoms
12 oxygen atoms
2 oxygen atoms
3 oxygen atoms
9
A subatomic particle never found in the nucleus is the:
proton
neutron
electron
10
As ice is heated, the temperature remains constant as:
melting occurs
molecules move faster
11
The raisin bun model of the atom was proposed by:
Dalton
Bohr
Thomson
Rutherford
12
Matter is made up of:
a vaccuum
energy
particles
antimatter
13
Fluorine has an atomic number of 9 and a mass number of 19. How many neutrons does it have?
9
10
19
28
14
Which is a property of non-metals?
brittle
high lustre
conducts heat
conducts electricity
15
Elements with the same number of valence electrons belong to the same:
period
organism
family
row
16
Na and K are symbols for:
Sodium and Potassium
Nickel and Krypton
Nitrogen and Calcium
Sulphur and Phosphorous
17
The valence shell of the electron is the:
inner shell
middle shell
outer shell
nucleus
18
Elements on the far right of the periodic table are:
noble gases
halogens
alkaline earth metals
alkali metals
19
A positive test for oxygen is that a glowing splint will:
go out
relight
explode
stay the same
20
Pure substances consist of:
elements and solutions
compounds and elements
elements and mechanical mixtures
compounds and solutions
21
Water decomposes into hydrogen and oxygen with electricity. The gas on the right is:
oxygen
carbon dioxide
hydrogen
water vapour