Question

atomic models
protons, electrons, and neutrons are three types of particles found in an atom. the protons and neutrons are found in the nucleus, and the electrons surround the nucleus. the number of protons and electrons will always be the same in a neutral atom.
example: an atom of carbon (c) can be illustrated as follows:
the atomic number tells how many protons an atom has. therefore, the atomic number for the above atom is 6. the mass number is the sum of the protons and neutrons in an atom. therefore, the mass number for this atom is 12. this atom of carbon is designated c - 12.
use the periodic table on page 59 for the information needed to help you sketch the following atoms:
n - 14
o - 16
cl - 35
ca - 40
mg - 24
co - 60

Explanation:

Step1: Find atomic number from periodic table

For N - 14, nitrogen's atomic number is 7. So, number of protons (p) = 7, number of electrons (e) = 7. Mass number is 14, so number of neutrons (n)=14 - 7 = 7. Sketch: nucleus with 7p and 7n, 7e in electron - shells.

Step2: For O - 16

Oxygen's atomic number is 8. So, p = 8, e = 8. Mass number is 16, so n = 16 - 8=8. Sketch: nucleus with 8p and 8n, 8e in electron - shells.

Step3: For Cl - 35

Chlorine's atomic number is 17. So, p = 17, e = 17. Mass number is 35, so n = 35 - 17 = 18. Sketch: nucleus with 17p and 18n, 17e in electron - shells.

Step4: For Ca - 40

Calcium's atomic number is 20. So, p = 20, e = 20. Mass number is 40, so n = 40 - 20 = 20. Sketch: nucleus with 20p and 20n, 20e in electron - shells.

Step5: For Mg - 24

Magnesium's atomic number is 12. So, p = 12, e = 12. Mass number is 24, so n = 24 - 12 = 12. Sketch: nucleus with 12p and 12n, 12e in electron - shells.

Step6: For Co - 60

Cobalt's atomic number is 27. So, p = 27, e = 27. Mass number is 60, so n = 60 - 27 = 33. Sketch: nucleus with 27p and 33n, 27e in electron - shells.

Answer:

Sketch each atom as described above with correct number of protons, neutrons in nucleus and electrons in electron - shells.