Which statement is inconsistent with the concept of isotopes of the same element?
a. isotopes have the same number of protons b. isotopes have the same atomic number
c. isotopes differ in mass number
d. isotopes differ in number of neutrons present
e. isotopes differ in their nuclear charge

answer: -

reaction:

na + cl ⇌ nacl

balanced chemical equation:

na + 2cl ⇌ nacl2

sodium + clorine goes to form sodium chloride (table salt).

the product is nacl2.

and the reactants are na and cl.

(note: if you don’t know what ⇌ means, read below: -

⇌(double head arrow) means reversible reaction).

geosphere and hydrosphere.

this is because the geosphere has to do with geological events, while the hydrosphere controls all water on earth.

where are the choice options?