Question

helppp
Which statement is true about two isotopes of the same element?

They have the same mass number.

They have different numbers of protons.

They have different locations on the periodic table.

They have different numbers of neutrons.

Answer 1

.

Answer 2

@dan815 hi can you help me?

Answer 3

First answer, "what is an isotope".

Answer 4

Remember isotopes of any element have the same number of protons which relate to their atomic number.

Answer 5

But it is something in their nucleus that makes them different.

Answer 6

It wouldn't be B. If that were true we would be talking about two different elements.

Answer 7

Isotopes have different masses.

Answer 8

No problem.

Answer 9

The last choice seems interesting.

Answer 10

Number of Protons dictate an elements identity (hydrogen has 1 proton, Helium has 2 etc.)

Number of Neutrons dictate what isotope an element is (An isotope is a way of denoting different forms of the same element).

For example,

Hydrogen 1 only contains one proton
Hydrogen 2 (deuterium) contains 1 proton and 1 neutron, giving at an atomic mass of 2
Hydrogen 3 (tritium) contains 1 proton and 2 neutrons, giving it an atomic mass of 3

Answer 11

Isotopes are the same atoms with different mass number as the nucleus contain different number or no neutron for example hydrogen have two isotope with one neutron deuterium and two neutron tritium and hydrogen.

Answer 12

They have different numbers of neutrons.

Isotopes are different atoms of the same element having same ATOMIC NUMBER but different MASS NUMBER.

Example: Carbon has 3 isotopes: C-12 , C-13, C-14