Five atoms are labelled A to E.
Atoms
Mass No
A
40
B.
19
C
7
D
16
E
14
Atomic No.
20
9
3
8
7
(a) Which one of these atoms :
(i) contains 7 protons
(ii)has electronic configuration 2, 7
(b) Write down the formula of the compound formed
between C and D. GC
(c) Predict : (i) metals
(ii) non-metals.
Answers
Answered by
2
Answer:
Five atoms are labelled A to E.
Atoms
Mass No
A
40
B.
19
C
7
D
16
E
14
Atomic No.
20
9
3
8
7
(a) Which one of these atoms :
(i) contains 7 protons
(ii)has electronic configuration 2, 7
(b) Write down the formula of the compound
Answered by
0
Answer:
Five atoms are labelled A to E.
Atoms
Mass No
A
40
B.
19
C
7
D
16
E
14
Atomic No.
20
9
3
8
7
(a) Which one of these atoms :
(i) contains 7 protons
(ii)has electronic configuration 2, 7
(b) Write down the formula of the compound formed
between C and D. GC
(c) Predict : (i) metals
(ii) non-metals.
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