WorksheetsUnit 2 Atomic structure retake assignment
Total questions: 27
Worksheet time: 14mins
If Lithium Loses its valence electrons (last energy level) what would be its charge?
+3
+1
-1
-3
What is the charge for the nucleus of this atom (Hint: use your periodic table the atomic # is the number of protons in the nucleus)
+3
+1
-1
-3
What is the charge for the electron cloud of this atom?
+3
+1
-1
-3
The Charge of this atom is
Neutral because it has the same # of protons and electrons
Neutral because it has the same # of protons and neutrons
Neutral because it has the same # of neutrons and electrons
Neutral because it has the same # of protons and alpha particles
What element is this?
Nitrogen
Oxygen
Potassium
Rubidium
What is the atomic mass of this element?
7
14
21
What is the difference between Carbon - 12, carbon 13, and carbon - 14
the number of neutrons in the nucleus
the number of protons in the cloud
the number of electrons in the nucleus
the number of electrons in the cloud
What is the difference between Carbon - 12, carbon 13, and carbon - 14
the atomic mass
the atomic #
These are different ions
these are different atoms
Cations are elements that have
gained and electron
lost an electron
have no electrons
gained a proton
Anions are elements that have_____?
gained and electron
lost an electron
have no electrons
gained a proton
What is the charge of oxygen that loses 2 electrons?
+2
-2
+8
-8
An element has 26 neutrons, 22 electrons and 24 protons what is it's identity
Chromium
Iron
Titanium
Palladium
An element has 26 neutrons, 22 electrons and 24 protons what is it's atomic mass
26
50
46
72
An element has 26 neutrons, 22 electrons and 24 protons what is its atomic number?
24
50
46
72
An element has 26 neutrons, 22 electrons and 24 protons what is its charge?
+24
-22
+2
-2
What is the identity of this element
Cl
Br
O
Al
how many energy levels does this element have?
1
2
3
4
5
The electrons that are closest to the nucleus are represented by the________peak?
400
44
20
5
.5
The higher the Ionization energy.......
The easier to remove an electron
The more tightly held the electrons are
The Higher the PES peak
The further to the right the peak is
The correct electron configuration for this element is..
1s2 2s2 2p6 3s2 3p6 4s2 3d5
1s2 2s2
1s2 2s2 2p6 3s2
1s2 2s2 2p6 3s2 3p5
How many Valence electrons does this element have (hint it is all of the electrons in the last energy level)?
3
6
7
5
What element is this orbital notation represent?
Oxygen
Nitrogen
Chlorine
Argon
What orbital is incorrect in orbital notation?
1s
2s
2p
3s
What Orbital is incorrect on this notation?
1s
2s
2p
3s
all of them
During the Rutherford experiment it was determined...
That most of the atom is empty space
That most of an atom is protons
That most of an atom is electrons
That most of an atom is neutrons
During the Rutherford experiment it was determined...
The nucleus is small and positive
The nucleus is small and negative
Alpha particles stick to electrons
The nucleus is small and neutral
What percentage of alpha particle went straight through the gold foil
99.9%
89.9%
65.9%
12.3%
