Question

type the correct answer in each box. the atomic number of sodium (na) is 11. the element phosphorous (p) is the fourth element to the right of sodium in the periodic table. the atomic number of phosphorus is. it has zero charge because it has electrons.

Explanation:

Step1: Find atomic number of P

Atomic number increases by 1 for each element to the right in periodic - table. Sodium has atomic number 11. Phosphorus is 4 elements to the right, so 11 + 4.
$11+4 = 15$

Step2: Determine number of electrons

For a neutral atom, number of electrons = atomic number. Since phosphorus has atomic number 15 and zero charge (neutral), it has 15 electrons.

Answer:

15; 15