Download Draw atomic models showing the appropriate number of electrons

Draw atomic models showing the appropriate number of electrons on each
shell for the following elements:
phosphorous #valence electrons
beryllium
#valence electrons
silicon
#valence electrons
nitrogen
#valence electrons
sulfur #valence electrons
selenium
#valence electrons
Unit 3 Review Sheet
Vocabulary
Electron shell
Valence electron
Ion
Ionic bond
Covalent bond
Electronegativity
Nonpolar bond
Polar bond
1. How strongly an atom is able to tug on bonding electrons
2. Type of bond that forms between two atoms of different
electronegativities where electrons are unevenly shared
3. The electrical force of attraction that holds ions of opposite charge
together
4. A chemical bond in which atoms are held together by their mutual
attraction for two electrons they share
5. Type of bond that forms between two atoms of similar
electronegativity when electrons are equally shared
6. A region of space about the atomic nucleus within which electrons
may reside
7. Any electron in the outermost occupied shell of an atom
8. Atoms with a positive or negative charge due to loss or gain of
electrons
Use the electronegativity chart on page 402 of your book for the following:
1. List these bonds in order of increasing polarity:
Se—Cl, P—Cl, F—Cl, Mg—Cl
2. List these bonds in order of increasing polarity:
P—S, P—O, P—Br, P—F
3. List these bonds in order of increasing polarity:
N—S, N—C, N—Se, N—Cl
4. List these bonds in order of increasing polarity:
Br—O, Br—Cl, Br—F, Br—S