Y9 LC2 CHEM HWK WK1 - Group 1

Each column in the periodic table is called a 

• period
• group
• cluster
• unit

In the modern periodic table elements are arranged by:

• atomic mass
• atomic number
• valence electrons
• number of isotopes

Which is an alkali metal?

• Magnesium
• Iron
• Sodium
• Europium

The alkali metals (group 1, column 1) have how many outer electrons?

• 1

• 2

• 7

• 8

The group number gives you what information?

• number of total electrons

• number of outer electrons

• number of protons

• number of neutrons

Which elements have the most similar chemical properties?

• K and Na
• K and Ca
• K and Cl
• K and S

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• number of shells

• number of outer electrons

• protons

• neutrons

Elements in a ..................have similar chemical properties.  

• period
• group
• row

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Alkali metals are found in which group of the periodic table?

• Group 1
• Group 2
• Group 7
• group 8 

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Which of the following is the most reactive in water?

• Lithium
• Sodium
• Potassium

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