Elements of group I A, II A, III A are more reactive as we go down in the group of the periodic table, Why?
Elements of which group in the periodic table are shown in the adjacent table? which element is the most reactive among them? give reasons. Write the electronic configuration of Na and K on the basis of the sub shell.
Group |
Li |
Na |
K |
Answer the following questions on the basis of given table:
Elements |
Electronic Configuration |
A |
1s2, 2s2,2p6,3s1 |
B |
1s2, 2s2,2p6,3s2 3p5 |
C |
1s2, 2s2,2p6,3s2 3p6 |
Study the table given below and answer the following questions:
Elements |
Electronic Configuration |
P |
1s2, 2s2,2p6,3s1 |
Q |
1s2, 2s2,2p6,3s2 3p6, 4s1 |
R |
1s2, 2s2, 2p6 |
Answer the following questions on the basis of the given table:
Name of element |
Electronic configuration |
X |
1s2, 2s2,2p6,3s1 |
Y |
1s2, 2s2,2p6,3s2,3p5 |
Z |
1s2, 2s2,2p6,3s2,3p6 |
A small part of periodic table is given below:
Identify the group of highly reactive metals, the highly reactive non metal and metalloids in the given table.
I A |
II A |
III A |
IV A |
V A |
VI A |
VII A |
O |
Li |
Be |
B |
C |
N |
O |
F |
Ne |
Na |
Mg |
Al |
Si |
P |
S |
Cl |
Ar |
Answer the following question from given electronic configuration.
Elements | Electronic configuration |
A | 1s2 , 2s2 2p6 , 3s1 |
B | 1s2 , 2s2 2p6 , 3s2 3p6 , 4s1 |
C | 1s2 , 2s2 2p6 , 3s2 3p5 |
A part of periodic table is given below:
|
I A |
II A |
III A |
IV A |
V A |
VI A |
VII A |
O |
Period-2 |
Li |
Be |
B |
C |
N |
O |
F |
Ne |
Period-3 |
Na |
Mg |
Al |
Si |
P |
S |
Cl |
Ar |
Study the above periodic table to answer the following question.
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