Compare and contrast a potassium atom and a potassium ion. Explain how to change a potassium ion into a potassium atom and vice versa. In your explanation, show the symbols that would be used to represent the atom and the ion.

A potassium atom, K is in its normal elemental state with 1 valence electron in it's most outer shell. ... However the potassium ion has lost it's valence electron and has therefore formed a positive action, K+ . It instead has 19 protons and 18 electrons, yielding a net positive charge.

Explanation:

you need to take a look at the periodic system in order to sort these elements into pairs that would most likely exhibit similar chemical properties. first, you need to find elements that are found in the same group (groups are vertical in the periodic system), and then to see whether they have the same valence number. if they meet these criteria, they will have similar properties.

the first pair: ne (neon) and kr (krypton), are noble gases found in group 8

the second pair: li (lithium) and k (potassium), found in group 1

the third pair: s (sulfur) and te (tellurium), found in group 6

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