CHEM 1020 C Question with Verified Correct
Answers
How are energy and frequency related
the higher the energy, the higher the frequency
How are frequency and wavelength related?
the higher the frequency, the lower the wavelength
Which neutral element does the following abbreviated configuration correctly describe?
1s2 2s2 2p6
Ne (Neon)
What is an atomic orbital?
It is a probability cloud that shows the probable location of an electron within a given atom
piece of aluminum = 10g
volume of cylinder before immersion = 35.0mL
volume after immersion = 38.7mL
what is the density?
98.7mL-35mL = 3.7mL = volume
D=M/V
D=10g/3.7mL
D=2.7g/mL
If you remove 2 protons and 2 neutrons from a gold atom (Au), what new element is
formed (if any)?
, Ir (Iridium)
move 2 elements to the left on the PT
If you remove 2 protons and 2 electrons from a sulfur atom (S), what new element is
formed (if any)?
Si (Silicon)
move 2 elements to the left... then subtract the 2 electrons that are in Sulfur to get neutral
Silicon
Which of the following elements are in the same period as Magnesium (Mg)?
Cl (Chlorine)
periods are rows
Which of the following elements are in the same group as silicon (Si)?
C (Carbon)
groups are columns
Elements that are in the same _____ have tendency to have very similar chemical
properties to due periodic trends.
group
Which would describe an S orbital?
(the circle one)
Answers
How are energy and frequency related
the higher the energy, the higher the frequency
How are frequency and wavelength related?
the higher the frequency, the lower the wavelength
Which neutral element does the following abbreviated configuration correctly describe?
1s2 2s2 2p6
Ne (Neon)
What is an atomic orbital?
It is a probability cloud that shows the probable location of an electron within a given atom
piece of aluminum = 10g
volume of cylinder before immersion = 35.0mL
volume after immersion = 38.7mL
what is the density?
98.7mL-35mL = 3.7mL = volume
D=M/V
D=10g/3.7mL
D=2.7g/mL
If you remove 2 protons and 2 neutrons from a gold atom (Au), what new element is
formed (if any)?
, Ir (Iridium)
move 2 elements to the left on the PT
If you remove 2 protons and 2 electrons from a sulfur atom (S), what new element is
formed (if any)?
Si (Silicon)
move 2 elements to the left... then subtract the 2 electrons that are in Sulfur to get neutral
Silicon
Which of the following elements are in the same period as Magnesium (Mg)?
Cl (Chlorine)
periods are rows
Which of the following elements are in the same group as silicon (Si)?
C (Carbon)
groups are columns
Elements that are in the same _____ have tendency to have very similar chemical
properties to due periodic trends.
group
Which would describe an S orbital?
(the circle one)
