Testable, that is always required for a hypothesis. Otherwise, how can you prove it?
Based on their position in the periodic table, fluorine is expected to have the greatest tendency to attract a shared pair of electrons.
The ability of elements to attract shared electrons in a bond is called electronegativity.
Electronegativity is a periodic trend that decreases down the group and increases across the period. This implies that, as we move across the period, the magnitude of electronegativity increases.
Based on this, we can see that fluorine in group 17 will have the greatest electronegativity since the electronegativity of noble gases is zero.
Learn more: brainly.com/question/2060520
The atomic radium increases to the left and downwards on the periodic table.
By that logic, Se has the largest radius.
Answer:
D
Explanation:
The particles will move side to side over large areas.