Question

the following tabke represent the elements and atomic no. elements are :P,Q ,R and their atomic no. are :13 ,7 ,10 1)which elements combines with hydrogen to form a basic gas? 2)which element had an electron affinity zero ? 3) name the element, which forms an ionic compound with chlorine?​

Answer 1

Answer:

1). Q

2). R

3). P

Explanation:

1). Q is Nitrogen which when combines with Hydrogen forms ammonia which is a base and is found in gas state in nature. (Basic Gas)

2). R is Neon, which has fully filled electronic valencies. Due to which it is a stable element in its natural state. Tbats why it is called as an Inert gas as it doesn't react with any other molecules easily.

3). P is Aluminium having valency of +3. Aluminium combines with chlorine to form AlCl3.

Answer 2

Explanation:

Q is nitrogen

R is neon

P is aluminium