Define
a) Formal charge
c) Octet rule
d) Standered eléctrode potential
e) Pollutant
f) Screening effect
Answers
Answer:
these are the questions of class 9
octet rule.....
each orbit of atom
must have 8 electron except first one we will fill from starting as going on......then we will follow octet rule
Answer:
a) Formal charge
a formal charge (FC) is the charge assigned to an atom in a molecule, assuming that electrons in all chemical bonds are shared equally between atoms, regardless of relative electronegativity.
c) octet rule
The octet rule is a chemical rule of thumb that reflects the theory that main group elements tend to bond in such a way that each atom has eight electrons in its valence shell, giving it the same electronic configuration as a noble gas.
d) Standard electrode potential
In electrochemistry, standard electrode potential is defined as the measures the individual potential of reversible electrode at standard state with ions at an effective concentration of 1mol dm⁻³ at the pressure of 1 atm
e) pollutants
A pollutant is a substance or energy introduced into the environment that has undesired effects, or adversely affects the usefulness of a resource.
f) screening effects
Screening effect is also known as the shielding effect. The phenomenon which occurs when the nucleus reduces its force of attraction on the valence electrons due to the presence of electrons in the inner-shell. ... Outer electrons experience attraction from the nucleus and repulsion from the inner electrons.