<span>calcium is not soluble in water because it reacts to water. It does not dissolve in it.
</span>
<em>Answer:</em>
- It behaves as the electron donar. Its is correct one
<em>Definition of lewis base:</em>
- Lewis base is a such a substance which donate pair of electron to Lewis acid.
<em>Example:</em>
H3N + BF3 ⇒ H3N---≥BF3
- Ammonia is a lewis base while boron trifluride is lewis acid.
<em>Condition</em>
- There should be lone pair of electron
- Negative charged substances or anions
Q3.) acidic
q4.)that the solution is acidic
q5.)that the solution is alkaline
Which of these describes atomic radii as one moves from top to bottom within a group? the atomic radius decreases from top to bottom within a group. the atomic radius does not vary in any predictable way within a group. the atomic radius is the same within a group.
correct answer
the atomic radius increases from top to bottom within a group?
