Question

potassium
determine the ionic radius.

write the chemical symbol and charge.

the ionic charge of is achieved when the atom loses electrons.

Explanation:

Step1: Recall potassium's position in periodic table

Potassium is in Group 1.

Step2: Determine ionic state

Elements in Group 1 lose 1 electron to form a +1 ion.

Step3: Write chemical symbol and charge

The chemical symbol of potassium is K and the charge is +1.

Answer:

1. Cation
2. K, +1
3. +1, loses, 1