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WorksheetsUnit 3 and 4 so far
Total questions: 10
Worksheet time: 50mins
Which particles are in the nucleus of an atom (choose all that apply)
proton
neutron
electron
neutrino
Where are the halogens on the periodic table?
Top row
Left most column
Second from the right column
second from bottom row
How many electrons in the valance shell for Alkali Earth Metals?
1
2
3
4
How does reactivity change down the column for Alkali metals?
All alkali metals have the same reactivity
Reactivity decreases down the column
Reactivity increase down the column
All alkali metals are non-reactive
When during the stellar life cycle is zinc formed by nuclear fusion?
During the main sequence
When a low mass star is a red giant
When a high mass star is a super red giant
During a supernova
Which elements were present at the beginning of the universe (after the big bang but before stars formed) Select all that apply
Hydrogen
Helium
Lithium
Boron
Carbon
Why do atoms share electrons to form molecules
So they have full valance shells
So they have full nuclei
So they can become chemically reactive
So they can form new elements
When doing a flame test to identify metals how should you set up the Bunsen burner?
Orange flame, as large as possible
Orange flame, as small as possible
Blue flame so an inner turquoise flame can be seen
Blue flame with uniform colour throughout
During a gas test for an unknown gas, how long should you leave the glowing splint in before checking with a flaming splint?
You should do the flaming splint test first
At least 10 seconds
Around a second
As long as it takes for smoke to fill the test tube
When ions form how do you know what the charge of the ion will be for an element?
The charge will be positive and equal to the number of electrons needed to fill the outermost shell with electrons in.
The charge will be negative and equal to how many electrons needed to fill the outermost shell or positive and equal to how many electrons need to be lost to empty the outermost shell.
The charge will be positive and equal to how many electrons needed to fill the outermost shell or negative and equal to how many electrons need to be lost to empty the outermost shell.
The charge will be negative and equal to the number of electrons needed to empty the outermost shell with electrons in.
