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Why can samples of an element have same atomic number but different atomic masses?

This is because the atomic mass of an element is the sum of protons and neutrons. While the proton number is specific for an element, the neutron number can vary for different isotopes of the element. Theref...
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Answered by Francis B. • Chemistry tutor
3902 Views

State the bonding present in diamonds

Covalent bonding
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Answered by Shanali T. • Chemistry tutor
2570 Views

Potassium forms an ionic compound with sulfur. Describe what happens when two atoms of potassium react with one atom of sulfur. Give your answer in terms of electron transfer. Give the formulae of the ions formed.

Potassium (K) is in group 1 of the periodic table, therefore it has 1 electron in it's outer shell. Sulfur is in group 6 so it has 6 electrons in it's outer shell. Ionic bonds occur when electrons are transf...
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Answered by Aashish A. • Chemistry tutor
6713 Views

How do I write a successful essay under exam conditions?

It can be difficult to make sure that you are answering the question that has been asked of you under the stress of exam conditions. To overcome this I would recommend that you first make a checklist at the ...
JC
4602 Views

work out 3 1/2 - 2 1/3. Give answer as an improper fraction

change everything to sixths. 21/6 - 14/6 = 7/6
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Answered by Maiya S. • Maths tutor
4001 Views