Answer:
sorry i dont understand
Explanation:
i am russian but i do school in english so i dont know what some of these elements are exept for water
Hydrogen fuses into helium
Answer:
10B has 18.9%
11B has 81.1%
Explanation:Please see attachment for explanation
Answer:
1. Alpha particles consist of two protons and two neutrons.
Explanation:
Alpha particles are generally produced in the process of alpha decay, a radio active decay in which an atom loses an helium atom.
AN alpha particle is identical to the helium particle. The helium particle has mass number of 4 and atomic number of 2. This means;
Number of protons = 2
Number of neutrons = Mass Number - Atomic Number = 2
The correct option is option 1.