Compounds Flashcards
1
Q
Compounds are made when…
A
…Atoms join together
2
Q
Making bonds involve atoms…
A
Giving, sharing or taking away electrons
3
Q
Metal atoms ? electrons to form positive ions
A
Lose
4
Q
Non-metal atoms gain electrons to form ? ions
A
Negative
5
Q
What is ionic bonding?
A
When the opposite charges of the ions mean that they’re strongly attracted to each other
6
Q
A compound formed from non-metals consists of…
A
…Molecules
7
Q
What is a covalent bond?
A
When each atom shares an electron with another atom
8
Q
Is CO2 an Element, Compound or Molecule?
A
Compound
9
Q
How is a CO2 formed?
A
A chemical reaction between carbon and oxygen
10
Q
How much of each is in this formula? Ca(OH)2
A
1 calcium, 2 oxygen, 2 hydrogen atoms
