How are isotopes defined? forms of different elements that have the same number of neutrons in each atom forms of different elements that have the same number of protons in each atom forms of the same element that differ in the number of neutrons in each atom forms of the same element that differ in the number of protons in each atom?

Answer : The correct option is, forms of the same element that differ in the number of neutrons in each atom

Explanation :

Isotopes : It is defined as the forms of same element that have the same number of protons and electrons but differ in the number of neutrons.

For example : Carbon-12, carbon-13 and carbon-14 is an isotopes due to the same number of protons and electrons and different number of neutrons.

Carbon-12

Atomic number = 6

Atomic mass = 12

Atomic number = Number of protons = Number of electrons = 6

Number of neutrons = Atomic mass - Atomic number = 12 - 6 = 6

Carbon-13

Atomic number = 6

Atomic mass = 13

Atomic number = Number of protons = Number of electrons = 6

Number of neutrons = Atomic mass - Atomic number = 13 - 6 = 7

Carbon-14

Atomic number = 6

Atomic mass = 14

Atomic number = Number of protons = Number of electrons = 6

Number of neutrons = Atomic mass - Atomic number = 14 - 6 = 8

answer: c. the experiment shows that the red substance experienced a chemical change.

explanation: chemical change is the change in which chemical composition of the substance changes. physical change is the change in which there is no change in chemical composition.

chemical changes are accompanied by following changes:

a) precipitate formation

b) energy is released or absorbed

c) formation of bubbles

d) change in color

as it is given that the red color has disappeared and there is production of gas, it means the red substance has undergone a chemical change.

e

its first and third is your answer i did the qustion the fourth isnt right