-10
That would be 35 ... often called the "average" of 25 and 45.
The LCM of 35 and 45 is 315
The mass number of an element is the sum of its protons and neutrons. Since Bromine has 35 protons (atomic number) and 45 neutrons, its mass number would be 35 + 45 = 80.
The element with atomic number 35 is bromine (Br). It has 35 protons and since it is neutral, it also has 35 electrons. To find the number of neutrons, subtract the atomic number (35) from the atomic mass (80). So, bromine-80 has 45 neutrons.
Composite numbers between 35 and 45 are: 36, 38, 39, 40, 42, and 44.
45 + 35 = 80
30, 35, 40, 45
35, 36, 38, 39, 40, 42, 44, 45.
The prime numbers between 35 and 45 are 37, 41, and 43.
35, 36, 38, 39, 40, 42, 44, 45
30, 32 and 34.