Reactivity Trends Of Each Gropu Flashcards
(17 cards)
What is a displacement reaction?
A more reactive element pushes out a less reactive element from a compound.
What does it mean when an atom has a full outer shell?
It means the atom’s outer shell is completely full of electrons, making it very stable and unreactive.
What is a metal halide?
A compound made when a metal reacts with a halogen (Group 7 element).
What is a metal hydroxide?
A compound made when a metal reacts with water, forming an alkaline solution.
What happens to the reactivity of Group 1 as you go down?
It increases.
Why does Group 1 reactivity increase down the group?
The outer electron is further from the nucleus and easier to lose.
How do Group 1 metals react with water?
They form a metal hydroxide and hydrogen gas.
What happens to the reactivity of Group 7 as you go down?
It decreases.
Why does Group 7 reactivity decrease down the group?
It is harder for the atom to gain an electron because outer shells are further from the nucleus.
What happens in a halogen displacement reaction?
A more reactive halogen displaces a less reactive one from a compound.
How do the colours and states of halogens change going down the group?
hey get darker and change from gas to liquid to solid.
Why are Group 0 elements unreactive?
They have a full outer shell of electrons.
What happens to the boiling points of noble gases down the group?
Boiling points increase.
Give one use of a noble gas.
Helium in balloons or argon in light bulbs.
where are noble gases found?
Group 8 0
Why group 1 alkali metals are so reactive?
Electron easier to lose.
Group 7 why less reactive?
Harder to gain electron.
