12. In the following table, the mass number and the atomic number of certain
elements are given :
А
B.
С
Elements
Mass no.
Atomic no.
D
40
1
7
E
40
20
1
3
7
18
(a) What would be the valency of the element C listed in the above table?
(b) Which two sub-atomic particles are equal in number in a neutral atom?
Share
Answer:
Christopher Hemsworth[1] (born 11 August 1983)[2] is an Australian actor. He first rose to prominence in Australia playing Kim Hyde in the Australian television series Home and Away (2004–07) before beginning a film career in Hollywood. Hemsworth is best known for playing Thor in eight Marvel Cinematic Universe films, beginning with Thor (2011) and appearing most recently in Avengers: Endgame (2019), which established him as one of the leading and highest-paid actors in the world.[3][4]
Explanation: