Question

an isotope of phosphorus contains 19 neutrons. construct the symbol for the isotope. tap on the parts of the symbol to enter or change the contents.

Explanation:

Step1: Find atomic number of P

Phosphorus (P) has atomic number \( Z = 15 \) (number of protons).

Step2: Calculate mass number

Mass number \( A=\text{protons}+\text{neutrons}=15 + 19=34 \).

Step3: Construct isotope symbol

Isotope symbol is \( \ce{^{A}_{Z}X} \), where \( X = \text{P} \), \( A = 34 \), \( Z = 15 \). So the symbol is \( \ce{^{34}_{15}P} \).

Answer:

\( \ce{^{34}_{15}P} \)