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Science
Science(Chemical bonding)
Question | Answer |
---|---|
How does ionic bonding occur? | When one atom loses electrons and another gains electrons |
How does covalent bonding occur? | When atoms share electrons |
What is an ionic bond? | The force of attraction between oppositely charged ions in a compound |
What is an ion? | A charged atom or group of atoms |
What happens when an element loses an atom? | It becomes positively charged |
What happens when an element gains an atom? | It becomes negatively charged |
Give an example of where ionic bonding occurs | Magnesium and oxygen = magnesium oxide |
Give an example of where covalent bonding occurs | Hydrogen and oxygen = (H20)water molecule |
Give three properties of ionic compounds | High melting points,soluble in water and conduct electricity when molten or dissolved in water |
Give three properties of covalent bonding | Low melting and boiling points,insoluble in water and do not conduct electricity |