Answer:
D
Explanation:
because they need it and hii
Answer:
Then pressure will double
Explanation:
PV = nRT
P = nRT / V
If all other variables are kept constant, P will be proportional to n i.e
P1 / n1 = P2 / n2
n = 1
P1 = P
n2 = 2
P2 =?
P1 / n1 = P2 / n2
P /1 = P2/2
Cross multiply
P2 = 2P
Therefore, if an additional 1mole of the gas is added, the pressure will double
Explanation:
The atomic radius of a non metal is larger than its neutral atom. Because the nonmetal have a tendency to gain electron and on gaining electrons, the electrons tend to repel each in the orbital.Hence, the size is increased.
The atomic radius tends to decrease from left to right as the nuclear charge increases the shielding of inner core electrons remain the same. The increased attraction of nucleus for its electrons pulls the electron inward. thus decreasing the size of atom.
N has more ionisation energy than Li
Ne has more ionisation energy than Kr
Li has more ionisation energy than Cs