UCR L7 Video Clip 1: Group discusses CQ 7-1

UCR L7 Video Clip 1: Group discusses CQ 7-1

The group goes through the various choices in CQ 7-1 and agrees that all of the statements are consistent with their observations regarding atomic structure. They decide on choice E.

UCR L7 Video Clip 2: Group describes positive and negative ions

UCR L7 Video Clip 2: Group describes positive and negative ions

Group discusses second making sense question on CR-68: why are ions positive when they loose electrons and negative when they gain electrons?

UCR L7 Video Clip 3: Group explains relationship between electrons lost and ion charge

UCR L7 Video Clip 3: Group explains relationship between electrons lost and ion charge

Sam answers the making sense question about the relationship between the number of electrons lost and the number value of the charge on a positive ion.

UCR L7 Video Clip 4: Group discusses CQ 7-2

UCR L7 Video Clip 4: Group discusses CQ 7-2

Group discusses CQ 7-2. They immediately recognize that the first two choices are not correct. They spend a lot of time discussing the third choice (arrangement of electrons resembling the nearest noble gas) and decide that choice C is correct.

UCR L7 Video Clip 5: Group discusses CQ 7-3

UCR L7 Video Clip 5: Group discusses CQ 7-3

Group goes through each of the statements in CQ 7-3 and decides that only statements (i) and (v) and (vi) are correct; so they chose C.