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Chemistry periodic table Flashcards | StudBud
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Chemistry periodic table
Chemistry periodic table
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Answers
1
The element with atomic number 26 will be found in the group
6
2
10
8
2
Which of the following electronic configurations of an atom has the lowest ionization energy
1s2 2s2 2p5
1s2 2s2 2p6 3s1
1s2 2s2 2p3
1s2 2s2 2p6
3
The vertical columns of the periodic table are termed as
Groups
periods
None of these
series
4
Is the electron gain enthalpy of fluorine less than that of chlorine
False
True
5
Which of the Following Blocks Refers to the Element with 29 Atomic Numbers
F-block
S-block
D-block
P- block
6
Which of the following has the lowest electron affinity
O
S
Kr
N
7
2.Which of the following correctly represents the increasing order of effective nuclear charge in Na, Al, Mg and Si atom
Na < Mg < Si <Al
Na = Mg =Al = Si
Mg < Na <Al< Si
Na < Mg <Al < Si
8
Which of the following atoms has the maximum negative electron gain enthalpy
Oxygen
Fluorine
Chlorine
Nitrogen
9
Assertion :
Second period consists of 8 elements.
Reason :
Number of elements in each period is four times the number of
Assertion is correct, reason is correct; reason is correct explanation
Assertion is correct, reason is correct; reason is not correct explanation
Assertion is correct, reason is incorrect
Assertion is incorrect, reason is correct
10
In the periodic table metals are arranged on the leftmost side of the table and the rightmost side contains non-metals
False
True
