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The Periodic Table How to find the number of protons, neutrons, & electrons for an element on the periodic table.

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Presentation on theme: "The Periodic Table How to find the number of protons, neutrons, & electrons for an element on the periodic table."— Presentation transcript:

1 The Periodic Table How to find the number of protons, neutrons, & electrons for an element on the periodic table.

2 What is an element? The periodic table is made up of elements.
An element is a substance that cannot be broken down into simpler substances by ordinary physical or chemical means. Elements are known as the building blocks of matter. It is made up of protons, neutrons, and electrons.

3 + + Remember P + Proton Positive Protons have a positive charge,
are located in the nucleus, and have a mass of 1 amu. Remember P + Proton Positive + +

4 Isn’t this easy! Remember N Neutron Neutral
Neutrons have a Neutral charge, are also located in the nucleus, and have a mass of 1 amu Remember N Isn’t this easy! Neutron Neutral

5 Remember E- Electron Negative Electrons have a Negative charge,
are located on the shells around the nucleus, and have a mass of 0 amu. Remember E- Nucleus Electron Negative Electrons Shells

6 The four parts of the periodic table are:
1 Atomic Number H Symbol Element Hydrogen Atomic Mass (Weight)

7 Quick Quiz Keep Going! What is the Atomic Number for Carbon (C)?
What is the Atomic Number for Iron (Fe)? What is the Atomic Number for Potassium (K)? What is the Atomic Number for Nitrogen (N)? What is the Atomic Number for Gold (Au)? Keep Going!

8 Quick Quiz 6 What is the Atomic Number for Carbon (C)? 26 What is the Atomic Number for Iron (Fe)? 19 What is the Atomic Number for Potassium (K)? 7 What is the Atomic Number for Nitrogen (N)? 79 What is the Atomic Number for Gold (Au)? Keep Going!

9 H 1 Atomic Number Hydrogen has 1 proton Hydrogen 1 electron. 1.00794
The Atomic Number equals the number of protons and electrons for that element. H Hydrogen has 1 proton 1 electron. Hydrogen

10 C 6 Atomic Number Carbon has Carbon 6 Protons 6 Electrons 12.011
The Atomic Number equals the number of protons and electrons for that element. C Carbon has Carbon 6 Protons 6 Electrons 12.011

11 Quick Quiz How many protons does Oxygen have?
How many electrons does Oxygen have? How many protons does Calcium have? How many electrons does Calcium have? How many protons does Zinc have? How many electrons does Zinc have? How many protons does Tin (Sn) have? How many electrons does Tin (Sn) have? How many protons does Radon have? How many electrons does Radon have?

12 Quick Quiz 8 20 30 50 86 How many protons does Oxygen have?
How many electrons does Oxygen have? How many protons does Calcium have? 20 How many electrons does Calcium have? How many protons does Zinc have? 30 How many protons does Zinc have? How many protons does Tin (Sn) have? 50 How many protons does Tin (Sn) have? How many protons does Radon have? 86 How many protons does Radon have?

13 Neutrons We’ve learned about protons and electrons.
What are we missing? Neutrons

14 H 1 Atomic Number Atomic Mass Hydrogen 1.00794
The number of Neutrons equals the Atomic Mass minus the Atomic Number. H Atomic Mass Hydrogen - Atomic Number Number of Neutrons Atomic Mass

15 ? Atomic Mass - Atomic Number Number of Neutrons
This sounds very complicated and I’m confused. That’s O.K. follow these 2 simple steps to help you. ? Atomic Mass - Atomic Number Number of Neutrons

16 H 1 Step 1 Atomic Mass 1.00794 Hydrogen 1.00794 1
Round the Atomic Mass to the nearest whole number. 1 H Look at the tenths column. If the number in the tenths column is 5 or greater, then round the number up, if not leave unchanged. Hydrogen rounded to the nearest whole number is? Atomic Mass 1

17 H 1 Step 2 1 1 1 - Hydrogen 1.00794 Find the Atomic Number:
Take the rounded Atomic Mass H 1 Subtract the Atomic Number 1 - Hydrogen Equals the Number of Neutrons

18 Practice Find the number of Neutrons in Nitrogen: 7 N Take the rounded Atomic Mass 14 Subtract the Atomic Number 7 - Nitrogen Equals the Number of Neutrons 7

19 Cl 17 Practice 2 - Very Good! Chlorine 35.453
Find the number of Neutrons in Chlorine: 17 Cl Take the rounded Atomic Mass Subtract the Atomic Number - Chlorine Equals the Number of Neutrons 35.453 Very Good!

20 Cl 17 Practice 2 35 17 - 18 Very Good! Chlorine 35.453
Find the number of Neutrons in Chlorine: 17 Cl Take the rounded Atomic Mass 35 Subtract the Atomic Number 17 - Chlorine Equals the Number of Neutrons 18 35.453 Very Good!

21 Au 79 Practice 3 - Very Good! Gold 196.9665
Find the number of Neutrons in Gold: 79 Au Take the rounded Atomic Mass Subtract the Atomic Number - Gold Equals the Number of Neutrons Very Good!

22 Au 79 Practice 3 197 79 - 118 Very Good! Gold 196.9665
Find the number of Neutrons in Gold: 79 Au Take the rounded Atomic Mass 197 Subtract the Atomic Number 79 - Gold Equals the Number of Neutrons 118 Very Good!

23 Practice on Your Own Boron (B) Sulfur (S) Scandium (Sc) Copper (CU)
Directions: Find the number of Protons, Electrons, and Neutrons for each element listed below. Boron (B) Protons - Electrons - Neutrons - Sulfur (S) Protons - Electrons - Neutrons - Scandium (Sc) Protons - Electrons - Neutrons - Copper (CU) Protons - Electrons - Neutrons - Indium (In) Protons - Electrons - Neutrons - Plutonium (Pu) Protons - Electrons - Neutrons -

24 Practice on Your Own 5 16 21 6 16 24 29 49 94 35 66 150 Boron (B)
Directions: Find the number of Protons, Electrons, and Neutrons for each element listed below. Boron (B) Protons - Electrons - Neutrons - Sulfur (S) Protons - Electrons - Neutrons - Scandium (Sc) Protons - Electrons - Neutrons - 5 16 21 6 16 24 Copper (CU) Protons - Electrons - Neutrons - Indium (In) Protons - Electrons - Neutrons - Plutonium (Pu) Protons - Electrons - Neutrons - 29 49 94 35 66 150

25 Now you know a little about the periodic table and how to find the number of protons, electrons, and neutrons.

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