Advertisements
Advertisements
प्रश्न
An element has 2 electrons in its N shell.
What is the valency of this element?
उत्तर
Valency of the element is 2.
संबंधित प्रश्न
Correct the statement.
Valency depends upon the number of shells in an atom.
According to atomic structure, what determines which element will be the first and which will be the last in a period?
Name the element which has a total of three shells with five electrons in its valence shell?
Name the element which has a total of four shells with two electrons in its valence shell?
The metals of Group 2 from top to bottom are Be, Mg, Ca, Sr and Ba. State the common feature in the electronic configuration.
How does number of valence electrons vary on moving from left to right in the third period of a periodic table?
Sodium and aluminum have atomic numbers 11 and 13, respectively. They are separated by one element in the periodic table and have valencies 1 and 3 respectively. Chlorine and potassium are also separated by one element in the periodic table (their atomic numbers being 17 and 19, respectively) and yet both have valency 1. Explain.
The valence shell of element A contains 3 electrons while the valence shell of element B contains 6 electrons. If A combines with B, the probable chemical formula of the compound is ______
Which one of the following elements exhibits a maximum number of valence electrons?
Match the atomic number with the following:
A gaseous element with valency 2.
