Answer:
Explanation:
Alkali metals (rarely 'Hydrogen and the alkali metals')
Alkaline earth metals (in old chemistry this name applied only to Ca and its congeners)
Icosagens (unofficial name; aka Boron group; rarely Earth metals)
Crystallogens (unofficial name; aka Carbon group; rarely Adamantogens[a] or Merylides[b])
Pnictogens
Chalcogens
Halogens
Noble gases (rarely Aerogens). The Group name may have to be changed to the “Helium group” since oganesson is not expected to be noble.
An artificial leaf could replicate photosynthesis but instead it would also be artificial which then produces hydrogen fuel that will be energy efficient and carbon neutral. hope this helps.
Normal sex cells will have 23 chromosomes
Answer:
"...for many of our white brothers, as evidenced by their presence here today, have come to realize that their destiny is tied up with our destiny."
(A)
