The atomic number tells you how many protons an atom has true of false?
1 answer:
You might be interested in
Answer:
8 electrons
Explanation:
Phosphorous is the element of group 15 and third period. The atomic number of chlorine is 15 and the symbol of the element is P.
The electronic configuration of the element phosphorus is:-
Thus, from the electronic configuration shown above,
In n = 2, the total number of electrons are 8 which are present in
Answer: 0.0345 sec
Explanation:
Rate law says that rate of a reaction is directly proportional to the concentration of the reactants each raised to a stoichiometric coefficient determined experimentally called as order.
k= rate constant =
Expression for rate law for first order kinetics is given by:
where,
k = rate constant
t = age of sample
a = let initial amount of the reactant
a - x = amount left after decay process
for completion of 20 % of reaction
The time taken for the concentration of to decrease to 20% to its natural value is 0.0345 sec