Organic Chemistry
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Determine the number of valence shell electrons of the element Si and the number of bonds it can form.
Add all the missing lone pairs in the structure below:
Show all the lone pairs of electrons in the skeletal structure below.
Phosphorus (P) has X valence electrons and prefers to form Y bonds. What are X and Y?
Consider the compound shown below:
Mark the atom expected to react with Cl+.
a. Determine the number of valence electrons possessed by sodium (Na) based on its position in the periodic table.
b. In what orbitals are its valence electrons located?
Provide a reason why alkali metals can not form covalent bonds.
Give the ionic compound (with charges) that will be forming from the following metal and non-metal.
Ca and Cl
Identify which labeled atom is expected to accept a proton.
Shown below is the line-angle structure of (S)-malate. Draw all lone pairs of electrons.
Identify the charge of the ion that results from the ionization of Ga (from group 3A).
Consider the structure of α-D-Fructopyranose (all C atoms and some H atoms are not shown). Fill in all lone pairs.
Sulfur (S) has 6 valence shell electrons and forms 3 new bonds. Is this true?
Fill in the lone pairs in the given skeletal structure.
Supply all the lone pairs of electrons in the following skeletal structure.
Determine the number of lone pairs in the marked atoms of the following molecular structures.
Determine the number of valence electrons in the atoms given below.a. Berylliumb. Aluminium
Using the periodic table, determine the position of each pair of specified atoms.
1. Determine the total number of valence electrons for each element.
2. Provide the total number of core electrons for each element.a. Sodium and potassiumb. Boron and aluminium
Ne is considered to be extremely stable and it is called a noble gas. Explain the stability of this element.
Without referring to electronegativity values, estimate whether the bond shown below is ionic, polar covalent, or covalent.
K―Br
Based on their position on the periodic table, how many core and valence electrons do the following elements have?
(i) Arsenic
(ii) Antimony
(iii) Strontium
(iv) Beryllium