Consider the group 1a element sodium (atomic number 11), the group 3a element aluminum (atomic number 13), and the group 7a element chlorine (atomic number 17). these elements are in period 3. how are the first ionization energies of these elements related?

How does the principle of electromagnetism explain the interaction between earth’s magnetic field and the solar wind?

Surface currents are caused by blank space . question 14 options: surface currents are caused by? differences in water temperature high salinity differences in density wind forces

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