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Khushi Rastogi
Subject: Chemistry
, asked on 22/7/17
What could be.the positon of element with atomic no 44. Plz urgent i hv to complete my assignment
Answer
2
Juee Dhar
Subject: Chemistry
, asked on 19/7/17
Pls explain this .
Answer
1
Prathik
Subject: Chemistry
, asked on 14/7/17
Chapter "Classification of Elements and Periodicity in Properties" "Topic 3: Periodic Trends in Physical Properties", the first video of that topic in that chapter shows that the atomic size decreases from left to right in a period (check at 02:00/ 02:00 in the first video of topic 3). But the atomic size of
Neon
should be larger than
Fluorine
in that period because
its a noble gas and has a non-bonded Van der Waal radius which is bigger than covalent radius of Fluorine. RIGHT?
Answer
1
Adnan Ahmed
Subject: Chemistry
, asked on 12/7/17
give the electronic configuration of the fifth element of the first transition series
Answer
2
Pianist
Subject: Chemistry
, asked on 11/7/17
how are lanthanide series, second transition series and third transition series an exception to the trend of atomic radius?
explain in detail.
Answer
1
Pianist
Subject: Chemistry
, asked on 11/7/17
Electro gain enthalpy of
a) O is less than S
b) F is less than CL
DESPITE OF HAVING SMALLER ATOMIC SIZES. EXPLAIN HOW AND WHY?
Answer
1
Sathvik
Subject: Chemistry
, asked on 9/7/17
both cl and o have same electronegativity but on o forms h bonding. why
Answer
1
Ashiq Ahamed
Subject: Chemistry
, asked on 8/7/17
helium has configuration of 1s^2 but is placed in p block explain
Answer
1
Sathvik
Subject: Chemistry
, asked on 7/7/17
the speed of movement of ions in water follow the order li plus na plus k plu an rb plus explain he anomaly
Answer
1
Varun Gupta
Subject: Chemistry
, asked on 3/7/17
How to make out which of the two elements have a larger size:- Li OR Mg
Answer
2
Varun Gupta
Subject: Chemistry
, asked on 3/7/17
Mnemonics to remember Periodic Table(in Hindi)
No links please... kindly give the mnemonics such that one can precisely make out which element it is.
Answer
1
Drishti
Subject: Chemistry
, asked on 1/7/17
what is polarising power? how it varies in modern periodic table.explain with example?
Answer
1
Varun Gupta
Subject: Chemistry
, asked on 29/6/17
Is there any possibility that effective nuclear charge experienced by an electron is -ve. Why/Why not?
Answer
1
Varun Gupta
Subject: Chemistry
, asked on 29/6/17
Calculate the effective nuclear charge experienced by the electrons of 4p-orbital of Sr(Z=38)? Kindly explain each step, no links please.
Answer
1
Lioncub
Subject: Chemistry
, asked on 29/6/17
Alkali metals have the lowest ionisation enthalpy in each period. Why?
Answer
2
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What are you looking for?
explain in detail.
a) O is less than S
b) F is less than CL
DESPITE OF HAVING SMALLER ATOMIC SIZES. EXPLAIN HOW AND WHY?
No links please... kindly give the mnemonics such that one can precisely make out which element it is.