Ions form the number of an atom is changed? Question options:

proton

neutron

atomic number

electron

(It was not Atomic number)

How do you identify the anode on a power source such as a battery? how do you identify the cathode? how are terms anion and cation?

Observation and experimentation have led many scientists to accept a theory about the origin of the universe. this theory is called the big bang theory. scientific evidence collected and observed by scientists around the world suggests that the universe is ever expanding from a hot and dense initial state. what makes this a scientific theory? (2 points)

How many grams of phosphorus are contained in 5.09 moles of phosphorus?