Five atoms are labelled from A to E-Vbeginarray - c - c - c -WlineAtoms - Mass No - Atomic No- Whline A - 40 - 20 lWhline B - 19 - 9 illhline C - 7 - 3 illhline D - 16 - 8 lilhline E - 14 - 711 hline end array Predict which are-i metalsii non-metals-A- i A- D and C are metalsii B and E are non-metalsB- i A and C are metalsii B- D and E are non-metalsC- i A and E are metalsii B- D and C are non-metalsD- i D and D are metalsii A- C and E are non-metals

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Standard X

Chemistry

Ionic Bond

Five atoms ar...

Question

Five atoms are labelled from A to E.
$\begin{matrix} A t o m s & M a s s N o & A t o m i c N o . A & 40 & 20 B & 19 & 9 C & 7 & 3 D & 16 & 8 E & 14 & 7 \end{matrix}$

Predict which are:
(i) metals
(ii) non-metals.

(i) A, D and C are metals
(ii) B and E are non-metals

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(i) A and C are metals
(ii) B, D and E are non-metals

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(i) A and E are metals
(ii) B, D and C are non-metals

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(i) D and D are metals
(ii) A, C and E are non-metals

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Solution

The correct option is B
(i) A and C are metals
(ii) B, D and E are non-metals

(i) A (2, 8, 8, 2) and C (2, 1) are metals.
(ii) B (2, 7), D (2, 6) and E (2, 5) are non-metals.

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Five atoms are labelled from A to E. AtomsMass NoAtomic No.A4020B199C73D168E147 Predict which are: (i) metals (ii) non-metals.

The correct option is B (i) A and C are metals (ii) B, D and E are non-metals (i) A (2, 8, 8, 2) and C (2, 1) are metals. (ii) B (2, 7), D (2, 6) and E (2, 5) are non-metals.

Five atoms are labelled from A to E.
$\begin{matrix} A t o m s & M a s s N o & A t o m i c N o . A & 40 & 20 B & 19 & 9 C & 7 & 3 D & 16 & 8 E & 14 & 7 \end{matrix}$

Predict which are:
(i) metals
(ii) non-metals.

The correct option is B
(i) A and C are metals
(ii) B, D and E are non-metals

(i) A (2, 8, 8, 2) and C (2, 1) are metals.
(ii) B (2, 7), D (2, 6) and E (2, 5) are non-metals.