The Periodic Table
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What is the scientific name of group 8 elements
Noble Gases
How do group 8 elements react
They don’t react
Why don’t group 8 elements react
They have a full outer energy level, so they don’t lose or gain electrons, nor share them
What is the scientific name of group 7 elements
Halogens
What is the charge of group 7 ions
-
What is the charge of group 1 ions
+
What is the charge of group 2 ions
2+
What is the scientific name of group 1 elements
Alkali Metals
What is the scientific name of group 2 elements
Alkaline Earth Metals
Elements are arranged in order of _______________
atomic number / proton number
Elements in the same ______ have similar chemical properties
group
What is the pattern in density of transition metals (high or low?)
High
The melting points _________ from Li to Fr
decrease
The hardness and density of metals __________ from Li to Fr
decrease
The reactivity __________ from Li to Fr
increases
Metal + Water —–>
Metal hydroxide + Hydrogen
What state is chlorine at room temperature
gas
What state is iodine at room temperature
solid
What state is bromine at room temperature
liquid
All halogens come in groups of ___
two (they are diatomic)
The reactivity _________ from Cl to I
decreases
The melting point __________ from Cl to I
increases
non-metal oxide + water —>
acid (hydrogen compound)
Flash cards on colours: https://quizlet.com/139829404/igcse-chemistry-colours-of-substances-flash-cards/