. In a reaction 1.33 moles of nitrogen gas reacts with hydrogen gas to form ammonia.
a. Balance the chemical equation
N2 + _H2 +
NH3
b. How many moles of ammonia are formed?

sodium (na), for example, has one electron in its valence shell. this is an unstable state because that valence shell needs eight electrons to be full. in order to fill its valence shell, find a way to add seven electrons to its valence shell

answer:

technetium is the most reactive. this is followed by silver. the least reactive out of these three elements is strontium.