use this information to write the element in isotope notation. 11 p+, 11 e-, 12 n0\n11\nna\n22.99\nwhat is…
use this information to write the element in isotope notation. 11 p+, 11 e-, 12 n0\n11\nna\n22.99\nwhat is the mass number?\n? na\n11
Answer
Explanation:
Step1: Recall mass - number formula
The mass number ($A$) of an atom is the sum of the number of protons ($p$) and neutrons ($n$). The formula is $A=p + n$.
Step2: Identify values of $p$ and $n$
We are given that the number of protons $p = 11$ and the number of neutrons $n=12$.
Step3: Calculate the mass number
Substitute the values into the formula: $A=11 + 12=23$.
Answer:
23