A) elements in the same group usually have similar chemical properties
B) This is because their atoms have the same number of electrons in the highest occupied energy shells
C) Lithium, sodium, potassium in group 1 elements are reactive metals called the alkali metals
Eaither D or A bit I am leaning more towards D
Yes it will, amplitude has influence on speed.
False because bases turn red litmus paper to blue and acids turn blue litmus paper red
