Two properties of transition metals

form coloured compounds and high melting point

What does 'relatively inert' mean?

They do not react at all with other elements

Which statement is INCORRECT about Alkali metals

reactivity decreases going down the group

Why are metals malleable

positive metal ions can slide past each other

What does Halogen displacement mean?

A more reactive metal replaces a less reactive metal

Why does reactivity decrease down group 7

Harder to attract an electron due to increased shielding

are relatively inert compared to other elements

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Groups of Periodic Table

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Questions 20

Answers

1
Which statement is FALSE for metallic structures
Low melting point
ability to conduct electricity
surrounded by free electrons
have positive ions
2
Two properties of transition metals
ionic bonding occurs
form coloured compounds and high melting point
Low melting point and non coloured
group 1 and 7 react to form them
3
What does 'relatively inert' mean?
the noble gases react easily with other elements
They do not react at all with other elements
Hard to react the noble gases with other elements
4
What happens to reactivity going down the Group 7
decreases
increases
5
Noble gases are found in
Group 7
Group 2
Group 1
Group 8
6
Which statement is INCORRECT about Alkali metals
They turn pH 14
Gets softer going down the group
They are Group 1 metals
reactivity decreases going down the group
7
Why are metals malleable
positive electrons move around
negative ions slide past each other
They get softer
positive metal ions can slide past each other
8
Noble gases are metallic elements
False
True
9
Which of the following alkali metals is the most reactive ?
Li
Cs
Na
Rb
10
Electron configuration for Ne₁₀ is
2,8
2,2,8
2,7
2,8,8
11
What does Halogen displacement mean?
A more reactive metal replaces a less reactive metal
pushing away a metal from its compound
A less reactive replaces a more reactive compound
moving away a reactive metal with a non reactive metal
12
Noble gases have
7 shells
7 electrons on the outer shell
8 shells
8 electrons on the outer shell
13
What group are halogens from?
1
7
2
8
14
What is the pattern in melting& boiling points as you go down group 7?
increasing
decreasing
15
Why does reactivity decrease down group 7
it is easier to attract an extra electron
closer to the nucleus
Harder to attract an electron due to increased shielding
easy to lose an electron from outer shell
16
What is the pattern in density as you go down the group?
decreasing
stays constant
stays the same
increasing
17
The noble gases:
are relatively inert compared to other elements
have high densities
18
How are elements arranged on the periodic table
According to atomic number
According to mass number
Alphabetically
According to reactivity
19
Chlorine + Sodium Bromide -->
Sodium chloride + bromide
Bromine chloride + sodium
Sodium chlorate
Sodium bromate + water
20
Complete the unbalanced equation: K + Br₂ -->
K2Br
KBr2
KBr
KBr + H2O

Groups of Periodic Table Flashcards | StudBud