Question | Answer |
What is the atomic number of an element? | The number of protons in an atom of the element. |
What is the mass number of an element? | The number of protons and neutrons in an atom of the element. |
How many protons in an atom of Carbon? | 6 |
How many electrons in an atom of Fluorine? | 9 |
How many neutrons in an atom of Sodium? | 12 |
How many electrons in an atom of phosphurus? | 15 |
How many neutrons in an atom of potassium? | 20 |
How many protons in an atom of Argon? | 18 |
What is the charge on a proton? | Positive |
What is the charge on a neutron? | 0 |
What is the charge on an electron? | Negative |
Where are the protons and neutrons located in an atom? | The nucleus |
What are the paths that electrons travel on called? | Orbits or Shells |
What is the electronic configuration of Aluminium? | (2, 8, 3) |
What is the electronic configuration of Calcium? | (2, 8, 8, 2) |
What are the horizontal rows in the Periodic Table called? | Periods |
What are the vertical columns called in the Periodic Table? | Groups |
What are Group I in the Periodic Table more commonly known as? | Alkali Metals |
What are Group 2 in the Periodic Table more commonly known as? | Alkaline Earth Metals |
What are Group 7 in the Periodic Table more commonly known as? | Halogens |
What are Group 8 in the Periodic Table more commonly known as? | Noble (Inert) Gases |
Name the gas produced when the Alkali Metals react with water. | Hydrogen |
What are Isotopes? | Atoms of the same element that have the same number of protons but a different number of neutrons. |