Answer:
168
Step-by-step explanation:
Answer:
<em>(3) 2-8-4</em>
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Step-by-step explanation:
Sulphur has an atomic number of 16
sulphur can exist in 3 different excited states of +2, +4 and +6
electronic configuration of sulphur is 2,8,6
when excited, <em>it loses 2 electrons to enter the +2 state</em>
in the +2 state, the electronic configuration will be <em>2,8,4</em>
Answer:
9) 130° (vertical to 130°)
10) 50° (supplementary to 130°, 180° - 130° = 50°)
11) 130° (alternate exterior to 130°)
12) 130° (vertical to 130°)
Step-by-step explanation: