Which 2+ ion has two 3d electrons? Which has eight 3d electrons?

29. Sodium atoms are much larger than chlorine atoms, but in NaCl sodium ions are much smaller than chloride ions. Why?

What is the electron arrangement for the element that has two more protons than carbon?

The abbreviated orbital diagram for an atom is shown below.    What element is represented by this orbital diagram? -- As  Br Se S Te Which element will have chemical properties that are similar to those of the element represented above? -- As Br Sb I Te How many valence electrons does this atom have? -- 4 6 10 16 How many unpaired electrons does this atom have? -- 0 1 2 4 6

How many electrons does this atom have: 1s^2 2s^2 2p^3.

● What are valence electrons? Noble gases are sometimes called "inert gases." How do their electron configurations explain why noble gases do not participate in many chemical reactions? If fluorine gains 1 electron, which element will it be similar to?_ If sodium loses 1 electron, which element will it be similar to?_ What group of elements are the "other elements" striving to be similar to?

Determine the maximum number of electrons that can have each of the following designations: 2Pz 6f 3f 3s 3p

Write the full electron configuration (no noble gas short cuts) for Cl

How many electrons are in the outermost shell of the Cl- ion in its ground state? 6 0 8 2

Give the number of s, p, d, and f electrons in each of the following atoms. (Please remember that Cu and Cr have irregular electron configurations. Also, the total number of electrons should add up to the atomic number of the neutral atom.) d atom Cd (Z=48) Fr (Z=87) Cu (Z=29) Р