how many valence electrons do the following atoms have a-boron,b-nitrogen,c-oxygen,d-fluorine
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a) boron- +3
b) nitrogen -3
c) oxygen. -2
d) fluorine -1
b) nitrogen -3
c) oxygen. -2
d) fluorine -1
yashika221:
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tell me problem 4 and 5
Answered by
6
Answer3/
Boron 3
Nitrogen 5
Oxygen 6
Fluorine 7
Answer4/
1) Cl: 1s2, 2s2, 2p6, 3s2, 3p5
2) Br: 1s2, 2s2, 2p6, 3s2, 3p6, 4s2, 3d10, 4p5
3) I : 1s2, 2s2, 2p6, 3s2, 3p6, 4s2, 3d10, 4p6, 5s2, 4d10, 5p5
4b/ 1) Cl : 7
2) Br : 7
3) I : 7
Answer 5/
Element (core, valence)
A.
Carbon (2, 4);
Silicon (10, 4)
B.
Oxygen (2, 6);
Sulfur (10, 6)
C.
Nitrogen (2, 5); Phosphorus (10, 5)
D.
Magnesium (10, 2); Calcium (18, 2)
Boron 3
Nitrogen 5
Oxygen 6
Fluorine 7
Answer4/
1) Cl: 1s2, 2s2, 2p6, 3s2, 3p5
2) Br: 1s2, 2s2, 2p6, 3s2, 3p6, 4s2, 3d10, 4p5
3) I : 1s2, 2s2, 2p6, 3s2, 3p6, 4s2, 3d10, 4p6, 5s2, 4d10, 5p5
4b/ 1) Cl : 7
2) Br : 7
3) I : 7
Answer 5/
Element (core, valence)
A.
Carbon (2, 4);
Silicon (10, 4)
B.
Oxygen (2, 6);
Sulfur (10, 6)
C.
Nitrogen (2, 5); Phosphorus (10, 5)
D.
Magnesium (10, 2); Calcium (18, 2)
thank you so much
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