Chua Yi Cheng's answer to Cheryl's Secondary 3 A Maths Singapore question.
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2(a) Group 1 ; Melting point decreases down the group
2(b) Group 7 ; Exists in diatomic molecules
P.S I forgot what O level regards the group with Fluorine Chlorine Bromine as, because in JC we learnt it as group 17, but please know I’m talking about that group thanks :D
i hope i’m correct
2(b) Group 7 ; Exists in diatomic molecules
P.S I forgot what O level regards the group with Fluorine Chlorine Bromine as, because in JC we learnt it as group 17, but please know I’m talking about that group thanks :D
i hope i’m correct
Date Posted:
3 years ago
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