A. Ca
B. Cr
C. Both of the above
D. None of the above
S-BLOCK ELEMENTS
S-BLOCK ELEMENTS
A. Francium
B. Caesium
C. Rubidium
D. Radium
A. Low electronegativity
B. Low electropositivity
C. Low charge density
D. Not known yet
A. small size
B. high charge density
C. less electropositivity
D. all of the above
A. Acidic
B. Basic
C. Amphoteric
D. Neutral
A. NaNO3
B. CaCO3
C. Ba (NO3)2
D. NH4Cl
A. Their oxides are basic
B. Their oxide and hydroxides are water soluble
C. Both A & B
D. They are found in earth