Question 2(a)Use the letters only written in the Periodic Table given below to answer the questions that follow: IIIIIIIVVVIVIIO1 L2Q EGJZM 3R 4T (i) State the number of valence electrons in atom J.(ii) Which element shown forms ions with a single negative charge?(iii) Which metallic element is more reactive than R?(iv) Which element has its electrons arranged in four shells?

Question

Question 2(a)Use the letters only written in the Periodic Table given below to answer the questions that follow: IIIIIIIVVVIVIIO1       L2Q EGJZM 3R       4T       (i) State the number of valence electrons in atom J.(ii) Which element shown forms ions with a single negative charge?(iii) Which metallic element is more reactive than R?(iv) Which element has its electrons arranged in four shells?

Accepted Answer

(i) Atom J has 5 valence electrons as it belongs to the fifth group in the periodic table.

(ii) M forms ions with a single negative charge as it has 7 electrons in the valence shell and obtaining one more electron completes it's octet.

(iii) Metal T is more reactive than R because elements at the bottom of the group are more reactive.

(iv) T has it's electrons arranged in 4 shells as it belongs to 4^th period.

	I	III	IV	V	VI	VII	O
1							L
2	Q	E	G	J	Z	M
3	R
4	T

Solved 2016 Question Paper ICSE Class 10 Chemistry — Question 1

Question 2(a)