Write any four difference between metals and non metals.

metals are malleable and ductile.

Non metals are non malleable and ductile.

Metals are good conductor of heat and electricity.

Non metals are bad conductor of heat and electricity.

Metals are lustrous.

Non metals are non lustrous.

Metals are strong and tough.

Non metals are not strong or tough.

Hope it helps you.Thank you

2b2t

explanation:

2b2t

considering the question as per the attachment

here we can see that the radon nuclide has 222 as the atomic mass number and 86 as the atomic number.

when it undergoes nuclear fission it gives polonium which has atomic mass number as 218 and atomic number will be 84 along with a helium nucleus which has 4 atomic mass number and 2 as its atomic number.

222 = 218 + 4 (atomic mass number)

86 = ? + 2; therefore ? = 86-2 = 84.

the atomic mass number of polonium will be 84.