<u>Answer:</u> The number of valence electron in the given atom are 5
<u>Explanation:</u>
Valence electrons are defined as the electrons which are present in the outermost shell of an atom. Outermost shell has the highest value of 'n' that is principal quantum number.
For the given electronic configuration: 
When an element belongs to d-block, the number of valence electrons are present in 
orbitals
Here, n = 4
The electrons in '4s' orbital = 2
The electrons in '3d' orbital = 3
Number of valence electrons = 2 + 3 = 5
Hence, the number of valence electron in the given atom are 5
By looking at http://wavecast.com/tides/ it shows that today in San Diego at 2:22 PM the tide as -1.53 feet low. But knowing this and that the tides are controlled by the moon I am unsure on how to answer your question.
I would say there is 10 (2 in the ethyl group, 3 in the three methyl groups and 5 in the pent chain)
A cell is a microscopic living organism which is the smallest part of an organism such as a plant or animal.
Answer: NaCl>HCl&H2O> N2
Explanation:
NaCl, as an ionic substance has a very high boiling point as expected. However, the boiling points of HCl and H2O depend on the relative concentration of the HCl and water, at 20% HCl, it boils at almost the same temperature as water due to extensive intermolecular hydrogen bonding. N2 comprises only of Vanderwaals forces hence it has the least boiling point.
