Which term refers to the energy emitted when an electron moves from a higher energy level to a lower one?

Sodium bicarbonate is the chemical name for baking powder. Its chemical formula is NaHCO3. What does the subscript 3 mean? a) There are three molecules of sodium bicarbonate. b) There are three molecules of oxygen in sodium bicarbonate.

Loudness is expressed in

This element has two electrons in its outer orbit, and it belongs to the third period.

Which is not a characteristic of minerals A. are solids with a fixed shape and volume B. are organic in nature C. are naturally occuring D. have a definite chemical position E. have a definite crystal structure

What is the difference between protons, electrons, and neutrons?

How many molecules are in 237g (about a cup of water)

How do elements change as you move to the right along a row in the periodic table? The atomic number decreases. The electronegativity decreases. The average atomic mass increases. The number of valence electrons decreases.

Is newton statement a law or a theory

Either aluminum or zinc will replace silver ion in silver nitrate to give silver metal and aluminum nitrate or silver metal and zinc nitrate

What is the basic unit of energy?