Question: what is the difference between group 1 and group 7 elements?
Answer: Group 1 elements are hydrogen (usually with an asterisk because it also has properties of group 17), lithium, sodium, potassium, rubidium, cesium, and francium—also known as the alkali metals. Group 7 elements are manganese, technetium, rhenium, and bohrium—part of what is known as the transition metals.