Question

Study the following tables. Give correct option for following questions. [Ques. No. 5 to 8]

Atoms Protons Neutrons Electrons

P 17 17 18

Q 12 12 10

R 18 18 18

S 11 13 11

5. What is a valency of atom-P? [1]

(a) 0 (b) 1 (c) 2 (d) 3

6. Which of the above is positively charge atom? [1]

(a) P (b) R (c) Q (d) S

7. Which of the above is a pair of Isobar? [1]

(a) Q and S (b) P and Q (c) R and P (d) Q and R

8. What is a number of nucleon of atome-"P"? [1]

(a) 17 (b) 35 (c) 18 (d) 34​

Answer 1

Answer:

Neutral species :  species with the same number of protons and electrons so A, F and G are neutral.

Negatively charged species :  species with more number of electrons than protons so B and E are negatively charged species.

Positively charged species: species with a higher number of protons than electrons, so C and D are positively charged species.

conventional symbols :

510A

714B3−

1939C+

3066D2+

3581E−

511F

919G

Hence, the correct option is D.

Answer 2

Answer:

919 G is answer for your question