Answer:
Option B
Explanation:
The correct answer is Option B.
Before Moseley's discovery in 1913, In Mendeleev's periodic table the elements rearranged with increasing atomic mass.
Mendeleev was not able to locate hydrogen atom and late isotopes found violate Mendeleev table. The biggest drawback was that the atomic mass was not regular when moving one element to another.
But Moseley's arranged element in the periodic table with increasing atomic number.
Answer:
Explanation:
You could try to say how helpful they are what they are and what they do
Answer:
D.
Explanation:
Force is strength and energy as an attribute of physical action or movement.
Answer:
Doppler Theory
Explanation:
it's a theory regarding the change in wave frequency during the relative motion between a wave source and its observer.
Answer:
A substance with low ability or no ability to conduct energy.
Such as Rubber,Silicone,Plastic