Answer:
The valence shell has higher energy than other occupied shells
Explanation:
According to Bohr's model of the atom, he suggested that the extranuclear part consists of electrons in specific spherical orbits around the nucleus.
His model suggests that the electron can move round the nucleus in certain permissible orbits or energy levels. The ground state is the lowest energy state available to the electron. The excited state is any level higher than the ground state.
The valence electrons are in the outermost shell of an atom. These electrons are of the highest energy levels in the atom
THANKS
The molecule is non-polar, because the difference in electronegativity between the two sides of the structure equals 0. The electronegativity difference between O (3.5) and C(2.5) is 1 and also on the other side, cancelling each other.
Answer:
None of the above.
Explanation:
A nebula: A star forms from massive clouds of dust and gas in space, also known as a nebula. Protostar: As the mass falls together it gets hot. Main sequence star. Red giant star. White dwarf. Supernova, and the Neutron star or black hole are all apart of the life cycle of Sol.
