B. As3 because potassium atoms do this to form ions with the same electron configuration as the noble gas argon
Answer:
Aluminium (Al): (3*2)+(5*2)=16
Sulphor (S): (3*1)=3
Oxygen (O): (4*3)+(3*1)=15
To solve the problem we will use the following equation:
n(Li) = N(Li) / NA
n - the number of moles
N - the number of particles
NA - Avogadro's number that has following value: 6.022×10²³ mol⁻¹
From the upper relation follows:
N(Li) = n(Li) × NA
N(Li) = 1mole × 6.022×10²³ mol⁻¹ = 6.022×10²³ atoms of <span>lithium</span>