How do the properties of each family of metals change as you move across the table?

Answer 1

As you move across the Periodic Table the elements gain a proton and an electron at each stage. This makes the nucleus larger each step you take and also increases the number of electrons in the outer shell. The number of electrons in the outer shell affects reactivity, too few and the element is reactive because it wants to lose them to get a full outer shell, too many (but not quite full) and it is reactive because it wants to add electrons to get a full shell.

Answer 2

As you move across the periodic table from left to right, the metals become less reactive, have higher melting and boiling points, and their atomic radii decrease. The transition metals in the middle of the table have variable oxidation states and form colorful compounds. Alkali and alkaline earth metals on the left side are more reactive and have lower melting points compared to transition metals.

Answer 3

they change because the numbers of valence electrons within a group change.

Answer 4

it decreases

Answer 5

They become less reactive.

Answer 6

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