Gold and helium are examples of a(n)

Which of the following electromagnetic waves can create ions?

What is the molar mass of a gas that has density of 2.054 g/l

He table below gives the atomic mass and relative abundance values for the three isotopes of element m. relative abundance (%) atomic mass (amu) 78.99 23.9850 10.00 24.9858 11.01 25.9826 what is the average atomic mass (in amu) of element m? 2.86 5.36 24.30 24.98