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14 - Periodic Table 1 Flashcards | StudBud
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14 - Periodic Table 1
14 - Periodic Table 1
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Sc Chemistry GCE O level
Flashcards
20 cards
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Practice quiz
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Questions
20
Answers
1
How is the period number related to the electronic structure of an atom?
The period number decrease as the electrons increase
The period number is the same as the atomic number
The period number is the no. of shells occupied by electrons
The period number is same as the group number
2
How are elements in a periodic table arranged?
Arranged according to valency
Arranged according to mass only
Arranged according to increasing number of protons and electrons
Arranged according to number of shells and outermost electrons
3
As elements move from left to right, each element increases by one proton
False
True
4
Group numbers have to be written in roman numerals. True or false?
False
True
5
Elements increase in mass due to
increase in the number of shells
increase in protons and neutrons when moving from left to right
increase in positive and negative charge
increase in number of electrons
6
How is the group number related to the electronic structure of an element?
Group number is equal to the electrons in the outermost shell
The valence shell electrons is equal to the period number
Group number is the same as the number of shells
7
What does the zig zag line on the periodic table do?
Separates metals from non metals.
Separates left from right.
Neither
8
Level 2
C
A
D
B
9
Proton number or atomic number is unique for every element. True or false
True
False
10
In the periodic table, the smaller number of the two number on each element
represent the atomic number of the element
represent the number of protons of the element
represent the number of neutrons and protons
represent the mass of the element
11
What are the rows of the periodic table called?
Periods
Columns
Groups
Lines
12
The chemical properties or reactions of any element is dependent on
the mass of the element
the number of electrons in the valence shell
the number of protons in the nucleus
the charge of its ions
13
What property changes when moving across the periodic table from right to left?
Mass decreases
Elements become more metal-like
Number of valence shells increases
Colour becomes darker
14
The rows in a periodic table ....
is related to the charge on its ions
represent the number of valence electrons
represent the period
represent the number of shells
15
Level 2
A
C
D
B
16
Where are the metals on the periodic table
The bottom
The right
The left
The middle
17
The chemical properties or reactions of any element is dependent on
the number of protons in the nucleus
the number of electrons in the valence shell
the mass of the element
the charge of its ions
18
Eleements of the same group have similiar or same chemical properties because
their number of shells increase
they are all in the same group
the number of electrons in the valence shell is the same
their masses are different
19
How does metallic character change across the periodic table?
metallic character increases from left to right
metallic character increases from right to left
20
The vertical columns in a periodic table .....
represent the group
is related to the number of electrons in the valence shell
represent the period of the elements
