Question

Write a brief passage describing a neutral atom of nitrogen-14 (N-14). Describe the number of protons, neutrons, and electrons in the atom, where each type of particle is located, and how the terms atomic number, mass number, and atomic mass are related to the particles. Use the periodic table to help you.

Answer 1

Answer:

Atomic number = number of electrons = number of protons

We get to know the atomic number of Nitrogen as 7 from the periodic table.

So Nitrogen contains 7 protons and 7 electrons.

To find the number of neutrons we make use of the formula  

Mass number - atomic number = number of neutrons

So number of neutrons in a Nitrogen atom =14-7=7 neutrons.

Atomic mass of Nitrogen is 14.0067 amu.

Average Atomic mass is the sum of the atomic mass of the isotopes multiplied by the abundance

Thats why we get a fractional number as atomic mass.

If suppose an element has 3 isotopes then,

Average atomic mass

$\frac{(\text {atomic mass of Isotope1 } \times \% \text { Abundance) }}{100} \%+\frac{\text { (atomic mass of Isotope2 } \times \% \text { fo Abundance) }}{100} \%$ $+\frac{\text {atomic mass of Isotope } 3 \times \% \text { Abundance }}{100}$

Is the formula to find the average atomic mass of an element.

So the Answer is Nitrogen atom has 7, protons 7, electrons and 7 neutron

Answer 2

Answer:

It contains seven protons in the nucleus.

It contains seven neutrons in the nucleus.

It contains seven electrons in orbitals around the nucleus.

Its atomic number is its number of protons.

Its atomic mass is the mass of protons and neutrons.

Explanation:

edg 2021