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WorksheetsChemistry 1
Total questions: 24
Worksheet time: 12mins
Is love a matter
Yes
No
Don't know
What is mass?
Amount of matter in an object
Same as weight
Amount of protons and electrons
Which is an example of extensive physical.property
Odour
Mass
Density
In chemical properties we see the reaction of a substance to what?
Air, acid, water,etc
Wood, soil, bench,etc
Air, clothes,food,etc
Matter is divided into?
Pure substances and mixtures
Mixtures and elements
Fluids and elements
What does the diagram show?
Chemical states of matter
Physical states of matter
Metals and non metals
Fluids are substances that can________
Fly
Follow
Flow
Name the subatomic particle that has no charge but has a mass
Electron
Proton
Neutron
A proton is about _____ times heavier than an electron
1836
1869
1800
Where do the electrons revolve
In orbits
In cables
In a rope
What happens when an electron.moves from an lower orbit to higher orbit?
It emits energy
It absorbs energy
It shrinks
True or false: opposite charges repel and same charges attract.
True
False
The force of repulsion between the protons is overcome by ______ which keeps them together in the nucleus
Strong nuclear forces
Electrostatic forces
Magnetic force
Who discovered the electrons
JJ Thompson
Bohr
John Dalton
Cathode is a______
Negative electrode
Positive electrode
Neutral electrode
In Rutherford gold foil experiment, whatbwas the interpretation of : occassionally an alpha particle travels back from the foil?
The nucleus is positively charged
The nucleus carries most of the mass
The atom has lots of empty space
Rutherford concluded that a _____ nucleus was a component of all atomic nuclei.
Helium
Hydrogen
Lithium
The electronic configuration of lithium is ?
(2,)
(2,2)
(2,1)
The electronic configuration of chlorine is?
(2,8,8)
(2,8,7)
(2,8,6)
______can help us to remember elements
Mnemonics
Phonics
Comics
Ozone is a?
Monoatomic molecule
Diatomic molecule
Triatomic molecule
Which rule states that the outermost shellmof an atom can contain only 8 electrons
Duplet rule
Octet rule
Heptaet rule
Cations are ?
Positively charged
Negatively charged
No charge
This is an image of?
Cation
Anion
Polyatomic ion
