Answer:
Neutrons = ( Atomic mass – Atomic number ) ( A–Z )
Protons and Electrons are equal to the atomic number
For example Neon,
Mass number (A) = 20
Atomic Number (Z) = 10
Number of Protons = 10
Number of Electrons = 10
Number of Neutrons = ( A–Z ) = 10
Electronic distribution :
K= 2
L= 8
Answer:
It decreases.
Explanation:
Due to changes in the Coulombic force, the protons within the nucleus of the ion have a much easier time pulling at one fewer electrons. This way, the electrons are pulled closer to the center, causing the radius to decrease.
B. A pure substance made up of one type of atom
Answer:0.61L
Explanation:
P1V1/n1T1=P2V2/n2T2
n1=n2 T1=T2
Therefore;
P1V1=P2V2
225×1.4=515×V2
V2=0.61L
N.B: Increase in pressure leads to decreases in volume (Boyle's law)
Answer:
I think it's A.
Explanation:
Metameric bodies are divided into segments called annuli. Annuli are covered in tiny hairs called setae. Setae help the worms move. So yes it's A.
<em>Happy Thanksgiving too! :D</em>
