Compounds Flashcards
(10 cards)
Compounds are made when…
…Atoms join together
Making bonds involve atoms…
Giving, sharing or taking away electrons
Metal atoms ? electrons to form positive ions
Lose
Non-metal atoms gain electrons to form ? ions
Negative
What is ionic bonding?
When the opposite charges of the ions mean that they’re strongly attracted to each other
A compound formed from non-metals consists of…
…Molecules
What is a covalent bond?
When each atom shares an electron with another atom
Is CO2 an Element, Compound or Molecule?
Compound
How is a CO2 formed?
A chemical reaction between carbon and oxygen
How much of each is in this formula? Ca(OH)2
1 calcium, 2 oxygen, 2 hydrogen atoms