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Meadowvale SNC1W Chemistry Flashcards | StudBud
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Meadowvale SNC1W Chemistry
Meadowvale SNC1W Chemistry
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SNC1D Science Unit C: Chemistry Topic: Atoms, Elements and Compounds
Flashcards
22 cards
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Questions
22
Answers
1
An atom that is neutral has the same number of:
electrons and protons
neutrons and protons
electrons and neutrons
2
Radioactive particles bouncing off gold foil indicated the presence of a:
neutron
atom
nucleus
electron shell
3
Matter is made up of:
a vaccuum
energy
antimatter
particles
4
Elements with the same valence electrons belong to the same:
row
family
period
organism
5
Pure substances consist of:
compounds and elements
elements and solutions
elements and mechanical mixtures
compounds and solutions
6
The maximum number of electrons that fit into the first shell is:
8
any number
2
18
7
Fluorine has an atomic number of 9 and a mass number of 20. How many neutrons does it have?
9
20
11
29
8
As ice is heated, the temperature should stop rising as:
molecules move faster
melting occurs
9
An arrow in a chemical equation indicates the:
reactant
product
reaction
production
10
Atoms of the same type with different numbers of neutrons are called:
isotopes
neutrinos
different elements
ions
11
Na and K are symbols for:
Nickel and Krypton
Sodium and Potassium
Sulphur and Phosphorous
Nitrogen and Calcium
12
The valence shell of the atom is the:
nucleus
outer shell
middle shell
inner shell
13
Salt water is an example of a:
mechanical mixture
compound
element
solution
14
Which is a property of non-metals?
brittle
conduct heat
shiny
conduct electricity
15
A subatomic particle never found in the nucleus is the:
neutron
proton
electron
16
Water decomposes into hydrogen and oxygen with the help of electricity. The reactant is:
electricity
water
hydrogen
oxygen
17
Elements on the far right of the periodic table are:
noble gases
alkali metals
halogens
alkaline earth metals
18
2Pb(NO
3
)
2
contains:
12 oxygen atoms
3 oxygen atoms
2 oxygen atoms
6 oxygen atoms
19
Electrons are found in:
trails
pathways
shells
20
The plum pudding model of the atom was proposed by:
Thomson
Dalton
Rutherford
Bohr
21
Which of the following is not an indication of a chemical reaction? A new:
colour
state of matter
odour
precipitate
22
A positive test for oxygen is that a glowing splint will:
explode
relight
stay the same
go out
