What happens when we move across a period from left to right?

Elements have more non-metallic properties

What is formed when Rubidium reacts with cold water?

Rubidium hydroxide and hydrogen gas

How is the periodic table ordered, ie from element 1->2->3 ..?

in order of increasing proton number

Why are noble gases unreactive?

They have a full valence shell of electrons

What is special among the elements of Group I?

They are soft and have a low density.

What is similar among the elements in the same group?

They have the same number of valence electrons.

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Periodic Table Revision - 4NA

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Questions 15

Answers

1
The elements in Group 1 are also known as
noble gases
alkali metals
acidic metals
halogens
2
Which reaction cannot happen?
Bromine + potassium chloride
Chlorine + potassium bromide
Chlorine + potassium iodide
Bromine + potassium iodide
3
What is the charge of elements in group VI?
+6
-6
+2
-2
4
What happens when we move across a period from left to right?
Elements have higher melting/boiling point
Elements have lower melting/boiling point
Elements have more non-metallic properties
Elements have more metallic properties
5
What is formed when Rubidium reacts with cold water?
Rubidium oxide and oxygen gas
Rubidium hydroxide and oxygen gas
Rubidium oxide and hydrogen gas
Rubidium hydroxide and hydrogen gas
6
What happens as we move down the Group I elements?
Their melting/boiling point increases.
Their hardness increase
Their densities increase.
Their reactivity decreases.
7
What observation will be seen when chlorine reacts with potassium bromide?
A precipitate is formed
Reddish Brown solution formed
Mixture becomes colourless
Hydrogen gas formed
8
What is today's date?
27 Mar
28 Mar
29 Mar
30 Mar
9
How is the periodic table ordered, ie from element 1->2->3 ..?
in order of reactivity
in increasing melting/boiling point
in order of increasing proton number
in order of increasing neutron number
10
Which group VII element has the highest melting/boiling point?
Chlorine
Bromine
Fluorine
Iodine
11
Which element of Periodic table is in Group IV, period 2?
Calcium
Magnesium
Carbon
Silicon
12
Why are noble gases unreactive?
They all have 8 electrons in the valence shell.
They have a full valence shell of electrons
They are all gases.
They are non-metals
13
What is the colour of the flame when potassium reacts with water?
Orange
Yellow
Lilac
Blue
14
What is special among the elements of Group I?
They are soft and have a low density.
They have very high melting and boiling points.
They can displace halides in displacement reactions.
They cannot conduct electricity.
15
What is similar among the elements in the same group?
They have the same number of electron shells.
They have the same melting/boiling point.
They have the same number of valence electrons.
They have the same number of electrons.

Periodic Table Revision - 4NA Flashcards | StudBud