Group 8A Elements Are Also Called

Q25: What is the correct chemical symbol for

Q26: How many neutrons are found in Ne-21?<br>A)11<br>B)21<br>C)10<br>D)0<br>E)none

Q27: An isotope represented as S-34:<br>A)is an isotope

Q28: How many protons and electrons are present

Q29: Ernest Rutherford proved the existence of electrons.

Q31: The atomic mass of a single carbon

Q32: Given that the molecular mass of bromine

Q33: Isotopes are atoms of the same element

Q34: Ions are formed when atoms:<br>A)gain or lose

Q35: Halogens form anions with a 1- charge.