Question

this is a bohr model of an atom or ion. select the nuclear notation that represents this atom or ion. refer to a periodic table.

Explanation:

Step1: Count protons

There are 3 protons in the nucleus. The atomic number (number of protons) determines the element. Looking at the periodic - table, the element with atomic number 3 is lithium (Li).

Step2: Count nucleons

There are 3 protons and 3 neutrons, so the mass number (sum of protons and neutrons) is 3 + 3=6.

Step3: Count electrons

There are 2 electrons. A neutral lithium atom has 3 electrons. Since there are 2 electrons here, it is a lithium ion with a + 1 charge.

Answer:

$_{3}^{6}\text{Li}^+$