Answer:
use google and use the first link
Explanation:
False. elements in the same period have the same number of shells while elements in the same group have the same number of valence electrons.
A theory is a proposed explanation for an observation
Answer:
the number of neutrons in above isotope = A - Z = 27 - 13 = 14. Note: The molar mass of aluminium, which is average of atomic masses of all isotopes = 26.981538 g/mol, since 13Al27 is the major isotope.
Explanation:
The answer is Velocity and potential energy. Kinetic energy is the total energy of a system or an object in motion and requires movement.
