Answer:
Explanation:
There are principles that guides the distribution of electrons into the energy levels in an atom. Some of the principles are:
1. The maximum number of electrons in the orbitals of sublevels are:
2 electrons for s-sublevel with one orbital
6 for p-sublevel with 3 orbitals
10 for d- sublevel with 5 orbitals
14 for f-sublevel with 7 orbitals.
The maximum number of electrons in an orbital is 2.
2. Aufbau principle: it states that sublevels with lower energy are filled up before those with higher energy. Sublevels have pattern of filling.
3. Pauli exclusion principle: it states that no two electrons can have the same set of the four quantum numbers.
4. Hund's rule of maximum multiplicity: electrons goes into degenerate orbitals of sub-levels singly before pairing starts.
Answer:
the correct ans
Explanation:
The quantitative amount of energy that is necessary to provide to a substance whose temperature has to be increased is depicted as heat capacity. When the temperature is changed by one degree Celsius and the amount is fixed to one gram, then the heat capacity is depicted as specific heat capacity.
Answer:
6moles of Li : 1 mole of N₂
Explanation:
The reaction equation is given as:
6Li + N₂ → 2Li₃N
Mole ratio of Li to N₂;
From the balanced reaction equation:
6 moles of Li will react with 1 mole of N₂;
The mole ratio is:
6moles of Li : 1 mole of N₂
(1) Understanding the problem
(2) Making a plan of solution
<span>(3) Carrying out the plan </span>
Density = Mass / Volume
Density = 2.74g / 3.10cm³
Density = 0.88 g/cm³