How many orbitals are in the 1p subshell of an oxygen atom?
Required
1 point
1
Question 2
2.
How many valence electrons does this element have?
Required
1 point
1
Question 3
3.
How many unpaired electrons does an atom of Nitrogen have?
Required
1 point
1
Question 4
4.
What element is shown below?
Required
1 point
1
Question 5
5.
Which of the following elements is paired with the CORRECT noble gas notation?
Required
1 point
1
Question 6
6.
An ion of nitrogen with a charge of -3 would be isoelectronic with
Required
1 point
1
Question 7
7.
Which of the following elements will have similar chemical properties to oxygen?
Required
1 point
1
Question 8
8.
Of the elements listed below, which has the largest atomic radius?
Required
1 point
1
Question 9
9.
Of the elements listed below, which has the lowest ionization energy?
Required
1 point
1
Question 10
10.
Using the table below, what color would you expect to see for a flame test of a sample of lead (II) oxide, PbO?
Required
1 point
1
Question 11
11.
Electrons emit energy in the form of light at the precise moment when they
Required
1 point
1
Question 12
12.
How many valence electrons do halogens have?
Required
1 point
1
Question 13
13.
Which of the following statements is TRUE?
Required
1 point
1
Question 14
14.
X-ray diffraction was used on unknown Element Z to find there are about 159 pm (picometers) between the center of Element Z's nucleus and its outermost electrons. The same measurement was done on 5 other known elements and that data was recorded in the table below. Using the table, which element could fit Element Z's description above?