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Give the letter that represents an atom of a noble gas
Give the letter that represents an atom that contains three protons
Give the letter that represents an atom of phosphorus
Give the letter that represents an atom of an element in Group 4 of the Periodic Table
Give the letter that represents an atom of an element in Period 3 of the Periodic Table
Give the letter that represents an atom with a full outer shell of electrons
Complete the sentence to describe a covalent bond.
A covalent bond is the electrostatic attraction between a pair of ...............
and the .......... of two atoms.
Suggest, with reference to electronic configurations, the most likely formula of the compound formed between atoms of A and D.
Explain why hydrogen has a very low boiling point.
When hydrogen burns in oxygen, heat energy is transferred to the surroundings.
State the name given to a reaction in which heat energy is transferred to the surroundings.
Write a chemical equation to represent the reaction that takes place when
hydrogen burns in oxygen.
Describe a chemical test to show that the product is water.
Describe a physical test to show that the product is pure water.
3iii
3c
4b
Indium is a metal in Group 3 of the Periodic Table.
(i) Describe the structure and bonding in indium.
Explain why indium is malleable.
