Chem Q5&6 Flashcards
What is an ion?
an atom thta has an electric charge b/c it either stole or gave away e’s
What is an ionic bond?
when oppositely charged atoms attarct each ither to from a new compound
What two groups are ionic bonds between?
metals and nonmeatles
What do atoms do in an ionic bond?
atoms steal & give away e’s to become more stable
How can knowing the number of e’s stoeln or given away help you?
It can help you figure out the chemical formula
What are the four steps to showing an ionic bond through dot diagram?
- Creat dot diagram for each element
- Find inonic charge for each element
- Figure chemical fromula
- Make sure the sum of electric charges =0
What is a molecule?
when atoms of the same element OR differant elements chemicaly combine
Is it 100% true that elements b/w groups 3-12 have 2 outside electrons?
No, transition metals
What is a covalent bond?
when atoms share e’s to from a new compund or molecule
Why would an atom share e’s?
to become stable
Can the # of atoms shared be an odd #?
No, they always share in pairs
Which types of elements usally form covalent bonds?
Between nonmetals
What is a compound?
two or more elements chemicaly combine in a deffinate ratio to from a new substance
