Explain why the element nickel has a high melting point
Nickel is a metal and therefore it contains positive ions, called protons, which are surrounded by a sea of delocalised electrons, which are negative ions. There is a strong force of attraction between these positive and negative ions, and this requires a large amount of energy to break. This means that a large amount of heat energy needs to be applied to break the bonds, resulting in a high melting point.
JD
Related Chemistry A Level answers
All answers ▸What is the electronic configuration for Sulphur?
What is the trend in atomic radius of the elements across Period 3 and why does this occur?
Alcohols can be converted into alkenes by removing water. The alcohol 3-methylpent-2-ol forms a mixture of organic products when dehydrated. Describe the conditions of this reaction. Name all the organic products.
Why is the first ionisation energy lower in barium compared to calcium?