Question

BRAINLIST PROMISE BUT PLEASE ANSWER..!
DO ATOMS HAVE DIFFERENT TYPE OF MASS.!
AS WE TAKE A THREAD AND A TABLE BOTH HAD ATOMS SO WHAT MAKES THREAD SO LIGHT AND TABLE SO WEIGHT!
AS BOTH HAD ATOMS SO WHY IS THIS DIFFERENCE..!!​

Answer 1

• These different types of helium atoms have different masses (3 or 4 atomic mass units ), and they are called isotopes. For any given isotope, the sum of the numbers of protons and neutrons in the nucleus is called the mass number. This is because each proton and each neutron weigh one atomic mass unit (amu)
• .There are two different kind of threads: ... So,in Python 3 the module "thread" is not available anymore. But that's not really ... To do this, we can use the function thread.start_new_threat