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The formula for beryllium hydroxide is Be(OH)₂ - Edexcel - GCSE Chemistry - Question 2 - 2018 - Paper 1

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The formula for beryllium hydroxide is Be(OH)₂. How many different elements are combined together in beryllium hydroxide, Be(OH)₂? Put a cross (X) in the box next to... show full transcript

Worked Solution & Example Answer:The formula for beryllium hydroxide is Be(OH)₂ - Edexcel - GCSE Chemistry - Question 2 - 2018 - Paper 1

Step 1

How many different elements are combined together in beryllium hydroxide, Be(OH)₂?

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Answer

Beryllium hydroxide, Be(OH)₂, contains three different elements: beryllium (Be), oxygen (O), and hydrogen (H). Therefore, the correct choice is B (3).

Step 2

Complete the table to show the relative mass and relative charge of a proton, a neutron and an electron.

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Answer

The completed table is as follows:

relative massrelative charge
proton1
neutron1
electron0.0005

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