Question

1. type the correct answers in the blanks below. identify the following from this isotope.

$_{10}^{21}ne$
name of isotope:
atomic mass number:
atomic number:
number of protons:
number of neutrons:

Explanation:

Step1: Identify isotope name

Isotope of neon with mass - number 21 is called neon - 21.

Step2: Determine atomic mass number

The top number in isotope notation is the atomic mass number. Here it is 21.

Step3: Find atomic number

The bottom number in isotope notation is the atomic number. Here it is 10.

Step4: Calculate number of protons

The atomic number is equal to the number of protons. So number of protons = 10.

Step5: Calculate number of neutrons

Number of neutrons = Atomic mass number - Atomic number. So, 21 - 10=11.

Answer:

Name of isotope: neon - 21
Atomic mass number: 21
Atomic number: 10
Number of protons: 10
Number of neutrons: 11