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Why is magnesium positioned in Group 2 of the periodic table?

All the elements within a group have the same number of electrons in their outermost shell. Magnesium is in group 2 because a magnesium atom has 2 electrons in its outer shell/outermost energy level. OR give...
JD
Answered by Jyothi D. • Chemistry tutor
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What is an ionic bond? Give an example of one.

An ionic bond is the transfer of electrons from one atom to another to obtain a stable outer shell. This only happens between a metal and a non metal. For example, magnesium would transfer 2 electrons to an ...
KC
Answered by Kenny C. • Chemistry tutor
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How do you balance an equation

First write out the equation given:Na + O 2 —> Na 2 ONow count how many oxygen atoms are on the LHS of equation (2) and how many are on the RHS (1). This means you must put a 2 in front of the Na 2 O to B...
LS
Answered by Lauren S. • Chemistry tutor
2591 Views

Why are metals good conductors of electricity?

Metals form metallic bonds, where unlike in covalent or ionic bonding, electrons are delocalised. This means the electrons can move freely throughout the metallic structure. Electricity is the flow of electr...
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Answered by Olivia K. • Chemistry tutor
51280 Views

Why do ionic compounds conduct electricity when molten or in solution, but not when solid?

Substances can conduct electricity if there is a way for charge to flow through that substance. For a substance to conduct electricity, it needs to contain some sort of charge carrier - this could be an elec...
JQ
Answered by James Q. • Chemistry tutor
120977 Views