part iv: review exercises\n1. the periodic table has a great deal of information about every atom. using…

part iv: review exercises\n1. the periodic table has a great deal of information about every atom. using your periodic table, answer the following questions:\na. what is the atomic number of chlorine (cl)? ____\nb. how many protons are there in any cl atom? ____\nc. what is the atomic number of tungsten (w)? ____\n2. complete the following table. assume the atoms are neutral.\n| name | symbol | atomic number | mass number | number of neutrons | number of electrons |\n| ---- | ---- | ---- | ---- | ---- | ---- |\n| hydrogen - 2 | $^{2}h$ | 1 | 2 | 1 | 1 |\n| | $^{3}h$ | | | | |\n| | | 12 | 24 | | 12 |\n| | | 12 | 25 | | |\n| | $^{107}ag$ | | | | |\n| carbon - 12 | | | | | 6 |\n| carbon - 13 | | | | | 6 |\n| carbon - 14 | | | | | 6 |\n| | $^{4}he$ | | | | |\n| | | 8 | | 8 | |\n| argon - 40 | | 18 | | | 18 |

part iv: review exercises\n1. the periodic table has a great deal of information about every atom. using your periodic table, answer the following questions:\na. what is the atomic number of chlorine (cl)? ____\nb. how many protons are there in any cl atom? ____\nc. what is the atomic number of tungsten (w)? ____\n2. complete the following table. assume the atoms are neutral.\n| name | symbol | atomic number | mass number | number of neutrons | number of electrons |\n| ---- | ---- | ---- | ---- | ---- | ---- |\n| hydrogen - 2 | $^{2}h$ | 1 | 2 | 1 | 1 |\n| | $^{3}h$ | | | | |\n| | | 12 | 24 | | 12 |\n| | | 12 | 25 | | |\n| | $^{107}ag$ | | | | |\n| carbon - 12 | | | | | 6 |\n| carbon - 13 | | | | | 6 |\n| carbon - 14 | | | | | 6 |\n| | $^{4}he$ | | | | |\n| | | 8 | | 8 | |\n| argon - 40 | | 18 | | | 18 |

Answer

Explanation:

Step1: Find chlorine in periodic table

Chlorine (Cl) has atomic number 17.

Step2: Recall proton - atomic number relation

For any atom, number of protons = atomic number. So Cl has 17 protons.

Step3: Find tungsten in periodic table

Tungsten (W) has atomic number 74.

Step4: Fill hydrogen - 3 row

Hydrogen - 3 has symbol $^{3}H$. Atomic number of hydrogen is 1. Mass number is 3. Number of neutrons = mass number - atomic number = 3 - 1 = 2. Number of electrons in neutral atom = atomic number = 1.

Step5: Fill magnesium rows

For atomic number 12 (magnesium), mass number 24, number of neutrons = 24 - 12 = 12. For mass number 25, number of neutrons = 25 - 12 = 13. Number of electrons in neutral magnesium = 12.

Step6: Fill silver row

For $^{107}Ag$, atomic number of silver is 47. Mass number is 107. Number of neutrons = 107 - 47 = 60. Number of electrons in neutral silver = 47.

Step7: Fill carbon rows

For carbon - 12, atomic number is 6, mass number is 12, number of neutrons = 12 - 6 = 6. For carbon - 13, mass number is 13, number of neutrons = 13 - 6 = 7. For carbon - 14, mass number is 14, number of neutrons = 14 - 6 = 8.

Step8: Fill helium row

For $^{4}He$, atomic number is 2, mass number is 4, number of neutrons = 4 - 2 = 2, number of electrons = 2.

Step9: Fill oxygen - like row

If atomic number is 8, mass number = number of neutrons+atomic number = 8 + 8 = 16.

Step10: Fill argon row

For argon - 40 with atomic number 18, mass number is 40, number of neutrons = 40 - 18 = 22.

Answer:

A. 17 B. 17 C. 74 2.

Name Symbol Atomic number Mass Number Number of neutrons Number of Electrons
hydrogen - 2 $^{2}H$ 1 2 1 1
hydrogen - 3 $^{3}H$ 1 3 2 1
magnesium 12 24 12 12
magnesium 12 25 13 12
silver $^{107}Ag$ 47 107 60 47
carbon - 12 6 12 6 6
carbon - 13 6 13 7 6
carbon - 14 6 14 8 6
helium $^{4}He$ 2 4 2 2
oxygen - like 8 16 8 8
argon - 40 18 40 22 18