Question

What determines the atomic number of an atom?


A.
the number of neutrons in two atoms of an element


B.
the number of electrons in the outer layer of any atom


C.
the number of protons in every atom of an element


D.
the number of protons plus the number of neutrons in an atom

Answer 1

@davidmack

Answer 2

c

Answer 3

thx you!

Answer 4

How do scientists determine the number of neutrons in an isotope of an atom?


A.
They find the number of protons.


B.
They divide the atomic mass by two.


C.
They add the number of electrons and protons.


D.
They subtract the atomic number from the atomic mass.

Answer 5

d

Answer 6

When scientists look at these examples, what do they know about the atoms?

Carbon–12 Carbon–14



A.
The number of neutrons in each atom is not the same.


B.
The atoms have different properties.


C.
One atom has more protons than the other.


D.
Only one of the examples is an isotope.

Answer 7

a

Answer 8

Which of the following is true statement about isotopes?



A.


The number of protons always equals the number of neutrons in all isotopes.


B.


The number of protons never equals the number of neutrons in an isotope.


C.


Different isotopes for the same element will always have the same numbers of neutrons.


D.


Different isotopes for the same element always have the same number of protons.

Answer 9

The number of protons never equals the number of neutrons in an isotope.

Answer 10

thx you <3

Answer 11

Which of the following is true statement about isotopes?



A.


The number of protons always equals the number of neutrons in all isotopes.


B.


The number of protons never equals the number of neutrons in an isotope.


C.


Different isotopes for the same element will always have the same numbers of neutrons.


D.


Different isotopes for the same element always have the same number of protons.


You are wrong it is actually :
D. Different isotopes for the same element always have the same number of protons.

Answer 12

XD