Question

he prop r s, and draw the lewis dot diagram, including the written configuratior
group #
p iod #

protons

of electrons

of energy shells

of valence electrons

lewis dot diagram
potassium

Explanation:

Step1: Determine group and period

From the periodic table, potassium (K) is in Group 1 and Period 4.

Step2: Find number of protons

The atomic number of K is 19, so # protons = 19.

Step3: Find number of electrons

For a neutral atom, # electrons = # protons = 19.

Step4: Find number of energy shells

Period number = number of energy shells. So # of energy shells = 4.

Step5: Find number of valence electrons

Group number (for main - group elements) = number of valence electrons. So # of valence electrons = 1.

Step6: Draw Lewis dot diagram

Since there is 1 valence electron, the Lewis dot diagram for K has 1 dot around the symbol K.

Answer:

Group #: 1
Period #: 4

protons: 19

of electrons: 19

of energy shells: 4

of valence electrons: 1

Lewis dot diagram: \( \text{K}\cdot \)