ch4 draw dot n cross Flashcards
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define covalent bonding
sharing of electrons, between, non-metal atoms
for dot and cross drawing place which element at the center
whatever has most electrons to share/whatever is lone element in formula
i.e. h2o
Oxygen in middle as it has most electrons to share + lone element (only 1 o)
wat is stable config for electrons
2.8.8
what is an ion
1.electrically charged atom/group atoms
- formed loss/gain of electrons
what are positive and negative ions held tgt by?
strong electrostatic forces of attraction
what determines number of covalent bonds between atoms?
number of pairs of shared electrons
i.e. 1 pair of shared electrons = 1 covalent bond
Metal X is an element
Can it exsist as X2?
NO
all metals in element form exist by themselves
draw struct formula
https://docs.google.com/document/d/1Ep_FO9CxYSFbxmf3Zqg9mgm9NNyt2enpfMDr49gufrU/edit?tab=t.0 page 16
https://docs.google.com/document/d/1Ep_FO9CxYSFbxmf3Zqg9mgm9NNyt2enpfMDr49gufrU/edit?tab=t.0 page 16
X -> 2+
Y -> 1-
Why form compound
Xy2
- X will transfer 2 VALENCE e- -> Y
- Y can only take 1 VALENCE e-