True ! search it up on safari and it tells you that it’s true
Answer:
Transition metals
Explanation:
Columns one and two are part of the main group along with columns 13 through 18
The second option - electrons are the subatomic particles with the smallest mass.
Both protons and electrons have charge (protons are positive and electrons are negative)
Protons and neutrons both equal 1 amu (atomic mass unit), whereas electrons weigh about 1/1000 amu
Electrons orbit around the nucleus, whereas protons and neutrons are inside of the nucleus
And for the last option, I already answered it
Answer: after years of research if the evidence still supports a change the theory will be revised
Explanation:
I think that’s it
