Group 1:
Alkali Metals
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| Term | Definition |
|---|---|
Group 1: | Alkali Metals |
Group 2: | Alkaline Earth Metals |
Groups 3-12: | transition metals |
Group 7 | Halogens |
Group 13 | Boron Family |
Group 14 | Carbon Family |
Group 15: | Pnictogens (Nitrogen Family) |
Group 16 | Chalcogens (oxygen family) |
Group 18: | Noble Gases |
Group 17 | Halogens |
What is the Periodic Table? | A chart that organises all known elements by increasing atomic number. |
How are elements arranged in the Periodic Table? | In order of increasing atomic number from left to right and top to bottom. |
What is a group? | A vertical column; elements in a group have similar properties and the same number of outer electrons. |
What is a period? | A horizontal row; atomic number increases by one across a period. |
Where are metals found on the Periodic Table? | On the left side. |
Where are non-metals found? | On the right side. |
What separates metals and non-metals? | A zig‑zag line. |
Why are noble gases unreactive? | They have full outer electron shells. |
Where are noble gases found? | Group 0 / Group 18. |
Symbol for oxygen? | O |
Symbol for sodium? | Na |
Symbol for hydrogen? | H |
Symbol for iron? | Fe |
Is gold a metal or non‑metal? | Metal |
Atomic number of helium? | Small 2 |
What does an element symbol consist of? | One or two letters |
Are noble gases reactive? | no they are unreactive |
What is a reactant? | A starting chemical in a reaction. |
What is a product? | A chemical formed in a reaction. |
What increases across a period? | atomic number |
What decreases across a period? | atomic radius |
What increases down Group 1? | reactivity |
What decreases down Group 7? | reactivity |
What is the symbol for potassium? | K |
Which group contains the least reactive elements? | Group 18 (Noble Gases) |
Two elements in the same period as oxygen? | Nitrogen and fluorine. |
What is an element? | a Substance that contains only ONE type of atom. |
What is a mixture? | A combination of two or more substances that are not chemically combined |
What is a compound? | 2 or more elements chemically combined |
What is an atom? | Smallest particle of an element |
Examples of a compound : | Water |
Examples of a mixture : | Air |
T/F - Metals dissolve in water | F |
Metals are solids at room temperature (apart from mercury) | T |
T/F - Metals are not easily shaped ;They are not malleable | F |
T/F - Metals are good conductors of heat and electricity | T |
T/F: Most nonmetals are liquid at room temperature. | ❌ False -Only one non‑metal is liquid at room temperature :Bromine (Br₂) |
T/F: Metals are shiny and have high densities | T |
T/F: Non -metals are strong | F |
T/F: Non-metals are brittle and are made up of weak forces | T |
Which metals are magnetic | iron |
3 properties of metal starting with D and S | ductile sonorous and dense |
Do metals have a high melting point and a low boiling point | F |
Do metals have a high melting point and a high boiling point | T |
Non metals are acidic or alkaline | acidic |
How many non-metals on the Periodic Table? | 18 |
What is a metalloid | A metalloid is an element that has some properties of metals and some properties of non‑metals. They are also called semi‑metals. |
how many metalloids on periodic table | 6 -B‑Si‑Ge‑As‑Sb‑Te "Buzzy Gee As Sub‑Tea" |