write the letter of the correct answer
1.which of the following is an alkaline earth metal?
A.krypton B.helium C.gold D.radium
2.according to the modern periodic law,the chemical properties of the elements are periodic function of their?
A.atomic mass B.atomic weight C. periodic number D.all of the above
3.elements the comprise the noble gases.
A.H,O,N,F B.He,Ne,Ar,Xe
C.F,CI,Br,I D.Au,,Ag,Pt,Pd
4.which of the following is a transition metal?
A.Ge B.Fe C.CI D.Kr
5.These elements are members of the halogen except?
A.flourine B.nitrogen C.bromine D.lodine
pls help guys,i need this now​