easy chemistry question, easy 10 points!!?

Check the periodic table.

In this case both are the same, as K can present itself both as a pure element and an ion. But since electrons don't have enough mass, if you take one off from the original K°, the atomic mass won't change in the first two decimal places.

So, the answer for both is 39.09>> 39.10 g/mol or amu.

Hi! Are you a chemistry student? Anyhow.

Name: Potassium

Symbol: K

Atomic Number: 19

Atomic Mass: 39.0983 amu

Melting Point: 63.65 °C (336.8 K, 146.57 °F)

Boiling Point: 774.0 °C (1047.15 K, 1425.2 °F)

Number of Protons/Electrons: 19

Number of Neutrons: 20

Classification: Alkali Metal

Crystal Structure: Cubic

Density @ 293 K: 0.862 g/cm3

Color: silvery

Hope the answer to the question.

Take care Bye.

39.10 : atomic mass

39.10:molar mass of K

well, it's written on every periodic table.

it's 39.10 for both, already corrected for natural isotopic distribution.

Thats EASY?????????