1 mole Zn ---------- 6.02 x 10²³ atoms
0.750 moles Zn ----- ?
atoms = 0.750 * ( 6.02 x 10²³ / 1 )
= 4.515 x 10²³ atoms
hope this helps!
Answer:
He showed that by absorbing a discrete quantum of energy, an electron can jump from one orbit to another. ... In spite of his contributions to the Bohr model of the atom, Einstein remained deeply troubled by the notion that atoms seemed to emit photons at random when their electrons change orbits.
Explanation:
Answer:
the more time you leave it to boil the water will turn to gas but if you leave it to heat for a short period of time it would probably stay the same
Explanation:
Answer:
D. THEY HAVE THE SAME NUMBER OF PROTONS AND ELECTRONS BUT DIFFERENT NUMBERS OF NEUTRONS.
Explanation:
Isotopy is the phenomenon that explains the various variants of an element having different number of neutrons but the same number of protons and electrons.
Isotopes are variants of a particular chemical element that possesses the same number of proton or atomic number but different mass number. The atomic number of an element is the number of protons and electrons contained by the element while the mass number is the sum total of the number of protons and neutrons in the nucleus of the elements.
Examples of isotopes are the hydrogen atom, chlorine element and so on.
Hydrogen has three isotopes which are hydrogen H, Deuterium and Tritium. Chlorine has two isotopes which are chlorine 35 and chlorine 37.
So the true options about isotopes is that they possess the same number of protons and electrons but different numbers of neutrins.
