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Topic 7 Groups rates and energy

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Total cards: 24•Content version: v4•Public deck•Updated: 8/1/2026

Card preview (24)

#1
Front (Question)

1 What do atoms of the same element have in common?

Back (Answer)

their atomic number/number of protons

#2
Front (Question)

2 Roughly how many elements are found naturally?

Back (Answer)

90 to 100

#3
Front (Question)

3 In what order are elements arranged in the periodic table?

Back (Answer)

in order of increasing atomic number

#4
Front (Question)

4 What do you call the columns in the periodic table?

Back (Answer)

groups

#5
Front (Question)

5 What is special about the elements that are in the same group of the periodic table?

Back (Answer)

similar properties

#6
Front (Question)

6 What is similar about the electronic configuration of elements in the same group?

Back (Answer)

same number of outer electrons

#7
Front (Question)

7 What is formed when a group 1 element reacts with water?

Back (Answer)

an alkali/metal hydroxide + hydrogen

#8
Front (Question)

8 What is the charge on the ions of elements in group 1?

Back (Answer)

1+

#9
Front (Question)

9 The first two elements in group 1 are lithium and sodium. What is the third element?

Back (Answer)

potassium

#10
Front (Question)

10 What name is given to group 1 elements?

Back (Answer)

the alkali metals

#11
Front (Question)

11 What happens to the reactivity of the group 1 elements as you go down the group?

Back (Answer)

it increases

#12
Front (Question)

12 What is produced when lithium reacts with water?

Back (Answer)

lithium hydroxide and hydrogen

#13
Front (Question)

13 Why do alkali metals get more reactive as you go down the group?

Back (Answer)

the outermost electron is further and further away, and so more easily removed

#14
Front (Question)

14 What name is given to group 7 elements?

Back (Answer)

the halogens

#15
Front (Question)

15 State an example of a group 7 element.

Back (Answer)

one of: fluorine, chlorine, bromine, iodine or astatine

#16
Front (Question)

16 What is the state of a substance at room temperature, if it has a melting point of ?7 °C and a boiling point of 59 °C?

Back (Answer)

liquid

#17
Front (Question)

17 What ion is in all acid solutions?

Back (Answer)

H+

#18
Front (Question)

18 Do metals usually form ionic compounds with other metals, non-metals, neither or both?

Back (Answer)

non-metals

#19
Front (Question)

19 State the formula of the compound formed when calcium reacts with bromine.

Back (Answer)

CaBr2

#20
Front (Question)

20 What is the name and colour of the only liquid halogen?

Back (Answer)

bromine, brown

#21
Front (Question)

21 What does chlorine look like?

Back (Answer)

pale green gas

#22
Front (Question)

22 How is the appearance of iodine different from that of the three halogens above it in group 7?

Back (Answer)

solid and darker/black in colour

#23
Front (Question)

23 Name the compound formed when hydrogen reacts with chlorine.

Back (Answer)

hydrogen chloride

#24
Front (Question)

24 What kind of solution is formed when hydrogen fluoride dissolves in water – acidic, neutral or alkaline?

Back (Answer)

acidic