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प्रश्न
State whether the following statement is true or false
On moving horizontally across a period, number of valence electrons increases from one to eight.
पर्याय
True
False
उत्तर
True
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संबंधित प्रश्न
Which element has a total of two shells, with three electrons in its valence shell?
Fill in the blank in the following statement:
The tendency to gain an electron ............... on moving down in a group of the periodic table.
In terms of electronic configurations, explain the variation in the size of the atoms of the elements belonging to the same period and same group ?
Which one of the following does not increase while moving down the group of the periodic table?
Periodicity is observed due to the similar ______.
State the trends in physical properties on moving down the group. Give an example to illustrate.
How many elements are there in period 2?
An element Z has atomic number 16. Answer the following
(a) State the period and group to which Z belongs
(b) Is Z a metal or a non-metal?
(c) State the formula between Z and hydrogen.
(d) what kind of a compund is this?
An element belongs to the third period and Group IIIA (13) of the periodic table. State: the name of the element.
Give a reason for the following:
A transition from metallic to non-metallic elements is seen on moving from left to right in a period of the periodic table.
