Question

The chemical properties of an element are largely derived from which of the following:
A.Its position in the periodic table
B.The proton number of an element
C.The nucleon number of an element
D.The number of valence electrons

Answer 1

Hint:Chemical properties of an element is defined as the characteristic of a substance that is observed during a chemical reaction. It also determines how it will react with other substances.

Complete step by step answer:
-Chemical properties of an element are the characteristics that become evident in how the materials or substances undergo a chemical reaction.
-There are some of the chemical properties listed below and we will see what each term describes:
-Radioactivity
It helps to determine how much radiation or emissions from an element can take place. For example: radioactive elements.
-Electronic shell
It describes the electronic configuration of the electrons in the shell. These shells are not exactly in the shape of a circle but actually they are waves which give it the shape. Through this it also helps to determine the number of valence electrons in the outermost shell.
-Atomic number
It basically indicates the number of protons that are present within an atom.
It is one of the important parts of chemistry.
-Atomic mass
It is the mass of an atom.
Mass here indicates the number of protons and neutrons that are concentrated within the nucleus.
Mass is important because if the mass of a neutron changes an isotope is formed of the same element which will have the same atomic number and same mass number.
mass also helps to determine the electronic configuration and there by getting to know its valence electrons in the outermost shell.
-Electronegativity
It is defined as the atom's ability to attract bonding electrons.
Greater the electronegativity greater will be the reactivity of an element.
electronegativity is more if the number of valence electrons are less in the outermost shell.

So, the correct answer is option d) The number of valence electrons.

Note:
The chemical properties depend majorly on the number of valence electrons in the outermost shell . The chemical properties may be directly or indirectly dependent on the number of valence electrons.