Question

answer the questions about the following isotope h-3 or $^{3}h$. the atomic number, the number of protons, is 1 (this is given on the periodic table). the mass number, the number of nucleons, is 2. the number of neutrons is 3. the number of electrons is 4. the charge is 5 making it an element. a. 0 b. 1 c. 2 d. 3 e. 4 f. -1 g. -2 h. -3 i. -4

Explanation:

Step1: Recall atomic number concept

The atomic number of hydrogen is 1, so for $^3H$, the number of protons is 1.

Step2: Identify mass - number

The notation $^3H$ indicates that the mass number (number of nucleons) is 3.

Step3: Calculate number of neutrons

The number of neutrons = mass number - atomic number. So, $3 - 1=2$.

Step4: Determine number of electrons

In a neutral atom, the number of electrons equals the number of protons. Since it is a neutral hydrogen - 3 atom, the number of electrons is 1.

Step5: Find the charge

A neutral atom has a charge of 0.

Answer:

1. B. 1
2. D. 3
3. C. 2
4. B. 1
5. A. 0