Elements with the same number of electrons or the same electronic configuration in the valence shell are observed to be within the same group in the periodic table. The groups are columns in in the periodic table. The elements only have the same charges when they occur as an ion. That is their only similarity apart from being metals or nonmetals. Examples would be elements in Group 1A like Na, Li, K, Rb and Cs.
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I want to see how the temperature of water affects the speed of rusting. What is the Independent Variable?
The Independent Variable is the temperature of water.
Answer : The correct option is, (4) one; five
Explanation :
Lewis-dot structure : It shows the bonding between the atoms of a molecule and it also shows the unpaired electrons present in the molecule.
In the Lewis-dot structure the valance electrons are shown by 'dot'.
The representation of valence electrons of an atom by dots around the symbol of an element is said to be the Lewis-dot symbol.
In the representation of Lewis-symbol, one electron dot must put on each side of the element symbol then paired the electrons.
As per information, element A has 1 valence electron and element B has 5 valence electrons.
Thus, the valency of A is one and B is five.