Variation of Valency
Trending Questions
Q. How can we find the valency of any atom , molecule or isotopes
Q.
Will different elements with same valence electrons have same Chemical properties? Why?
Q.
How many valence electrons does oxygen have?
2
6
8
16
Q.
The electrons present in the outermost shell of an atom are known as ________(charged electrons/ valence electrons).
Q.
How does number of (i) valence electrons (ii) valency ;vary on the moving from left to right :
(a) in the second period of a periodic table ?
(b) in the third period of a periodic table ?
Q.
What happens to number of valence electrons in atoms of elements as we go down a group of the periodic table ?
Q. How to take out valency from a given electronic configuration
of element ?
of element ?
Q.
The valency of aluminium is :
4
1
2
3
Q. An element has electronic configuration 2, 8, 4. To which group and period of the periodic table it belongs to?
- 2, 4
- 14, 3
- 4, 14
- 3, 14
Q. Sir how to calculate valemcy of elements please help me
Q. <!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}-->
If an atom contains one electron and one proton, will it carry any charge or not?
Q. <!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}-->
If an atom contains one electron and one proton, will it carry any charge or not?
Q. Number of valence electrons in carbon is
[TEXTBOOK QUESTION-I(1)]
[TEXTBOOK QUESTION-I(1)]
- 4
- 5
- 3
- 2
Q.
Isobars have different electronic configurations.
- True
- False
Q. Which of the following statements is (are) correct statement about the trends when going from left to right across the periods of periodic Table?
- The number of valence electrons increases
- The elements become less metallic in nature
- The atoms lose their electrons more easily
- The oxides become more acidic
Q. Identify the factor that distinguishes each element from every other element in the periodic table ?
- The number of protons in the nucleus
- The number of neutrons in the nucleus
- The number of electrons about the nucleus
- The total mass of the nucleus (protons plus neutrons)
- Its position in the periodic table
Q. <!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}-->
What is an electron? What is its relative mass and charge?
Q.
Name three elements which exibit variable valency?