Midterm Exam Ch. 1, 2, and 3.
The maximum number of electrons contained within the third energy level is _____.
18
What is the maximum number of electrons that can be contained in the first, second, and third energy levels, respectively?
2,8,18.
How many electrons are contained in the first, second, and third energy levels, respectively, for the element sulfur, S?
2,8,6.
In their most stable form, the elements of Group 5A will all carry a charge of _____.
3-
A sample of silver weighing 107.9 grams contains _____.
6.02 × 10^23 silver atoms
Which of the following statements about VSEPR theory is true?
It provides information about the three-dimensional shape of a molecule.
How many covalent bonds is oxygen capable of forming?
Two
An atom that has a greater number of protons than electrons is called _____.
a cation.
An ionic bond _____.
forms by the transfer of electron(s) from one atom to another.In their most stable form, the elements of Group 5A will all carry a charge of _____.
The _____ number is representative of the total number of valence electrons for main group elements.
group
The rule that states that elements will react in such as way as to become stable by obtaining a filled valence shell is known as the _____.
octet rule
What is the electron geometry of PF3?
tetrahedral
In order to determine the polarity of a large molecule, you must know _____.
the three-dimensional structure and the electronegativities of the bonding atoms in the molecule.
What is the molecular geometry of SO32−?
trigonal pyramidal
Which of the following describes a scenario in which the molecular geometry would have the smallest bond angle(s)?
two bonding domains (or bonding pairs) and two nonbonding domains (or lone pairs)