Use the periodic table to identify the number of core electrons and the number of valence electrons in each case below. potassium (k): 1s22s22p63s23p64s1

The number of core electrons = 18 electrons.

The number of valence electrons = 1 electron.

Explanation:

∴ the number of core electrons = 18 electrons.

∴ the number of valence electrons = 1 electron.

18 core electrons

1 valence electron

Explanation:

In the periodic table, potassium stands at the head or beginning of the fourth period. It is found in group 1. The third period ends with argon having 18 electrons. This implies that potassium should have at least 18 core electrons. Since it is found in group 1 having only 1 valence electron, it is expected to also have one valence electron.

Its electron configuration summarizes these statements above; 1s22s22p63s23p64s1

There are 18 core electrons and one valence electron in the outermost 4s1 orbital (the fourth shell)

explanation:

venn diagram is pictorial representation with of circles showing the relation between two finite sets or things. the intersection part of two circles conveys the relation present in between those sets or things.

here in the venn diagram of sand and salt two circles represent sand and salt. but the area falling under the intersection of these circle represents the mixture of sand and salt.

so, in a venn diagram the mixture will be placed in a middle that is in between the intersection of two circles.