Isotopes

Front

How many neutrons does the isotope of lithium have?

Back

5

Front

If a hydrogen atom has 1 proton, 1 electron, and 1 neutron, its atomic number is:

Back

1

Front

How many protons does this isotope of titanium have?

Back

22

Front

If a sulfur atom has 16 protons, 16 electrons, and 16 neutrons, its atomic mass is:

Back

32

Front

What is the name of the pictured isotope? Options: Copper-29, Copper-63, Copper-34, CopperWopperHopperBopper

Back

Copper-63

Front

Which of the following are isotopes?
a) ¹⁴ ₇X
b) ¹⁴ ₆X
c) ¹⁵ ₇X
d) ¹⁵ ₈X

Back

¹⁴ ₇X and ¹⁵ ₇X

Front

Which symbols represent isotopes of the same element?   I. ⁷⁷₃₅X  II. ⁷⁷₃₃X  III. ⁸¹₃₇X  IV. ⁸¹₃₅ X

Back

I and IV

Front

How is carbon-12 different from carbon-14?

Back

They have a different number of neutrons.

Front

What do carbon-12 and carbon-14 have in common?

Back

they have same number of protons

Front

What can you conclude about carbon-14 from its name? Options: It has 14 electrons, it has 14 neutrons, it has 14 protons, it has an atomic mass of 14 u

Back

it has an atomic mass of 14 u