Which pair of elements has similar prope...

Which pair of elements has similar properties?
13, 31, 11 & 21

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Which pair of elements has same chemical properties ?

Out of the elements H(1), Be(4), Na (11), Mg(12) : (a) Write the pair of elements having similar chemical properties. (b) State the group number of each pair. (c) Name one another element belonging to each of these groups.

Knowledge Check

Which pair of polymers have similar properties?

A

Nylon, PVC

B

PAN, PTFE

C

PCTFE, PTFE

D

Bakelite, alkyd resin

Which pair of elements has same chemical properties?

A

13,22

B

3,11

C

4,24

D

2,4

Which pair of elements has same chemical properties?

A

13,22

B

3,11

C

4,24

D

2,4

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CBSE COMPLEMENTARY MATERIAL-CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES -1 - MARK QUESTIONS

Which pair of elements has similar properties? 13, 31, 11 & 21
01:40
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Name the element which exhibit diagonal relationship with Be.
02:04
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Which group elements are known as halogens?
01:01
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The element with ns^2, np^5 configuration is non-metal or metal?
02:01
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Define van der Waal's radius.
01:35
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Write the outer shell configuration of atomic number 31.
03:16
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Find the group number and period number of element having atomic numbe...
02:39
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Arrange O^(2-), O^(-1) , O in decreasing radius (size).
01:47
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Why do noble gases have bigger atomic size than halogens?
01:42
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Why first electron gain enthalpy of sulphur is more negative then oxyg...
03:12
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Write general outer electronic configuration of 4f series elements.
02:25
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Write two isoelectronic species with Br (35)
03:01
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Show that 4th period can have maximum 18 elements in it.
04:16
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Second I.E. is always more than first I.E., why?
03:08
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Electronegativity of F gt Cl gt Br gt I , why?
02:18
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Arrange F and Cl in terms of increasing chemical reactivity?
02:25
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Second I.E. of Na is more than second IE of Mg. Why?
04:21
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I.E. for cation is more than neutral atom. Why?
02:29
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Define diagonal relationship with the help of an example.
02:23
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Out of O^(-) and O , which has more negative electron gain enthalpy?
02:06
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