Explanation:
No of molecules=0.500×6.023×10²³=3.011×10²³ molecules
Answer:
That substance is an element.
Explanation:
Atoms in a substance have the same identity, that substance is an element. in other words if all atoms are alike then it is an element.
Ive gotten this question asked to me before.
Answer:
Visible Light
Explanation:
It helps us see things around us!
the number is the mass number
the mass number is the number of nucleons (total number of protons and neautrons in the nucleus) so in hydrogen-3 there are 3 nucleons and as hydrogen has 1 proton, there are 2 neutrons
carbon 12 has 12 nucleons (6 protons and 6 neutrons) and carbn 13 has 13 nucleons (6 protons and 7 neutrons)
Answer:
18.066 x 10^23 atoms of Au
Explanation:
ONE mole = 6.022 x 10^23 particles
3 x 6.022 x 10^23
