Question

question 13 (4 points)
write the following element in atomic notation based on the description provided:
an element with 61 protons, 59 electrons, and 84 neutrons
chemical symbol:
atomic number:
mass number:
charge:

Explanation:

Step1: Identify the element

The atomic number ($Z$) is equal to the number of protons. Since there are 61 protons, the atomic number $Z = 61$. The element with atomic number 61 is Promethium, symbol $Pm$.

Step2: Calculate the mass number

The mass number ($A$) is the sum of protons and neutrons. Given 61 protons and 84 neutrons, $A=61 + 84=145$.

Step3: Determine the charge

The charge of an ion is given by the difference between the number of protons and electrons. There are 61 protons and 59 electrons. So the charge $q=61 - 59 = + 2$.

Answer:

Chemical Symbol: $Pm$
Atomic Number: 61
Mass Number: 145
Charge: +2