Floats or sinks Because of its mass
The 3 ways are:-
1. Forming ionic bond by giving or taking electrons.
2. Forming Covalent bond by equal sharing of electrons.
3. Forming Co-ordinate bond by unequal sharing of electrons.
anything except for a and d
Peridodic table is rlly confusing
Answer:
The 2s orbital is at a higher energy level.
Explanation:
1s and 2s are the sub-orbitals that are located in an atom. They are nearest to the nucleus and are found on the s sub-orbital. The difference between 1s and 2s is the difference in their level of energy. 1s has low energy as compared to 2s. 1s orbital has the lowest energy because it is located closed to the nucleus. 2s orbital has higher energy than 1s because it's orbit is larger than 1s.