Answer:
Ernest Rutherford discovered the existence of a center of the atom.
Explanation:
Answer:
Zn2+ is colourless
Explanation:
We know that transition metal salts are usually coloured due to the possibility of d-d transition.
This d-d transition can only occur when there are vacant d-orbitals. The electronic configuration [Ar] 4s23d8 suggests the presence of vacant d-orbitals and the possibility of the compounds of Zn2+ being coloured.
However, the absence of colours in Zn2+ compounds shows that there is no d-d transition(electronic) spectra observed for Zn2+ because the d orbitals are completely filled. This means that the correct electronic configuration of the ion is [Ar] 3d10.
H and O
CI and F
Mg and N
P and O
Cs and F
*should know them from the first letter very easy*
Answer:
A). It encouraged them to rely on observation and experimentation to support their conclusions.
Explanation:
by requiring that the electrons move in orbits of fixed size and energy
(hope this helps!!)
