Many substances exist as molecules - Edexcel - GCSE Chemistry - Question 5 - 2012 - Paper 1
Question 5
Many substances exist as molecules.
(a) The diagram shows the outer shell electrons in a molecule of methane, CH₄.
(i) Each hydrogen atom is bonded to the carbon at... show full transcript
Worked Solution & Example Answer:Many substances exist as molecules - Edexcel - GCSE Chemistry - Question 5 - 2012 - Paper 1
Step 1
Give the meaning of the term covalent bond.
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Answer
A covalent bond is a shared pair of electrons between two atoms. It involves the mutual sharing of one or more pairs of electrons, allowing each atom to attain the electron configuration of a noble gas, thus stabilizing both atoms.
Step 2
Complete the sentence by putting a cross (✗) in the box next to your answer.
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Answer
Methane is a typical simple molecular, covalent compound. A property of methane is that:
