Property:
-Reactivity
Alkali metals:
-very reactive
Transition metals:
-less reactive
Property:
-Density
Alkali metals:
-Can float on water
Transition metals:
-sink in water
Property:
-melting and boiling point:
Alkali metals:
-Low
Transition metals:
-high
Property:
-colour of salts
Alkali metals:
-Colourless
Transition metals:
-often coloured
Answer:
Francium (Fr)
Explanation:
Looking at the periodic table, Francium has 7 energy levels as it is in the 7th Period and is in the 1st Group (meaning it has one electron in the outermost shell) which suggests that it has one valence electron.
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Answer:
D. either acid or fire
Explanation:
When doing an experiment with acid or fire, you do not want the substance to end up in your eyes. It is important you wear goggles to protect yourself.
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Answer:
0.369M
Explanation:
☆ Volume has to be in litres
Molarity of solution
= 0.99 ÷2.5
= 0.369 M