<span>These atoms are known as valence atoms.</span>
The atomic number of calculated as number of protons + number of neutrons. The number of protons are the same as atomic number. This implies that Nitrogen has seven protons. To get the the number of neutron we minus atomic mass from number of protons
that is 14-7=7 neutrons
When you mix 0.1 M HCI, with a drop of brothymol blje, this will make the incubator to change from blue to yellow.
Answer:
Aluminum
Explanation:
It has 13 electrons, 2 in shell one, 8 in shell two, and 3 in shell three
I hope this helps you out
