Write the Electron Configuration using the box diagram or orbital diagram of each element. 11vNa
1s^2 2s^2 2p^6 3s^1
18vAr
1s^2 2s^2 2p^6 3s^2 3p^6

For each of the compounds below, show that the charges on the ions add up to zero. a. kbr b. cao c. li(2)o d. cacl(2) e. alcl(3)

In a copper wire, a temperature increase is the result of which of the following

Which of the following is a conclusion that resulted from ernest rutherford’s scattering experiment? (will mark brainliest) a. the nucleus is negatively charged b. the atom is a dense solid and is indivisible c. the mass is conserved when atoms react chemically d. the nucleus is very small and the atom is mostly empty space