Question

(valence electrons/electrons)
1.50
(row/column)
2
D. Choose the correct option to fill in
1. Elements are arranged in order of their
(atomic
that those with similar atomic structure appear in the same
(Groups/Periods) of the periodic table are arranged such that all the
elements within them have same number of ........
3. Nitric acid has
(1/2) hydrogen atom(s) and sulphuric acid has
(1/2) hydrogen atom(s).
4. In ozone, there are .............. (2/3) atoms of oxygen and hence is referred to as a
(diatomic/triatomic) molecule.
5. In ammonium carbonate, the ammonium bears
and carbonate bears ..................(positive/negative) charge.
(positive/negative) change ​

Answer 1

Answer:

Explanation:

What Are Valence Electrons?

What makes cool chemical reactions work? Remember those fun experiments like making a volcano from baking soda and vinegar or a rocket from Mentos and soda? We wouldn't have these reactions without valence electrons.

Valence electrons are the electrons located at the outermost shell of an atom. Why are these electrons special? Because when two atoms interact, the electrons in the outermost shells are the first ones to come into contact with each other and are the ones that determine how an atom will react in a chemical reaction.

Let's imagine a fast food, drive-through restaurant. We drive through the lane in our car, reach our hands out the window, and the employee reaches out and hands us the food. The whole interaction between the car and the restaurant rests just on the arms of the employee and driver at their windows. The arms of the driver and the arms of the employee are kind of like valence electrons.

Let's look at some examples below to visualize valence electrons.