WorksheetsBohr and Lewis models
Total questions: 44
Worksheet time: 49mins
Imagine you are a scientist studying the periodic table in your lab. In this scenario, what would 'Groups' refer to?
the horizontal rows you see on the periodic table
the vertical columns you see on the periodic table
Trace pic according to direction to draw a Bohr model of given element.
1] write in P# & N# in nucleus
2] color VE shell green write e over the VE & color the rest of electrons blue
3]write the # of VE in Top right hand corner VE=?_
Imagine you are looking at a periodic table. In this context, the Periods are represented as
Horizontal rows
Vertical columns
Imagine you are looking at an atom as if it were a solar system. The nucleus is the sun and the electrons are the planets. What would you call the electrons in the outermost orbit?
Electrons in the first energy shell
Electrons in the second energy shell
Electrons in the outer shell
Total number of electrons
Imagine you are studying the structure of an atom. The innermost energy level of this atom can hold a maximum of how many electrons?
1
2
6
8
You are in a chemistry lab and you come across an unknown element. The element is colorless, odorless, and it glows red when electricity is passed through it. Which element is this?
Nickel
Neon
Sodium
Nitrogen
You are a scientist working in a lab and you come across an element with atomic number 4. What is this element?
Beryllium (atomic #4)
Boron (atomic #5)
Carbon (atomic #6)
Nitrogen (atomic #7)
John is studying chemistry and he comes across an element in the periodic table. He wants to know how many valence electrons does this element have?
2
3
4
5
Draw the bohr model for silicon -
can trace
John is studying chemistry and he came across an element. He found that the element has how many valence electrons?
2
4
6
8
An apple falls from a tree. If the apple is considered as an atom, what is its mass?
9
10
19
28
A scientist is studying a Bohr model in his lab. Can you tell which element this Bohr model represents?
Chromium
Magnesium
Carbon
Krypton
A scientist is studying a sample of Chlorine in her lab. She needs to know the mass number of the atom. Can you help her?
17
18
35
35.453
In a chemistry class, students are asked to identify the element that would be in group 16. The options given are:
Element V
Element W
Element X
Element Y
Element Z
In a chemistry class, students are asked to identify the element that would be in group 2 of the periodic table. Which element would that be?
Vanadium (V)
Tungsten (W)
Xenon (X)
Yttrium (Y)
Zinc (Z)
What is the the outermost shell with electrons?
Shells
Isotope
Orbit
Valence
Imagine you are a scientist studying the air we breathe. You come across an Oxygen atom. How many valence (outer) electrons does this Oxygen atom have?
2
6
8
16
In a chemistry class, the teacher drew a dot diagram on the board and claimed it was for fluorine (F). Is this statement true?
true
false
John is studying chemistry and he comes across a dot diagram for magnesium (Mg). He believes it's correct. Is he right?
true
false
Trace pic according to direction to draw a Bohr model of given element.
1] write in P# & N# in nucleus
2] color VE shell green write e over the VE & color the rest of electrons blue
3]write the # of VE in Top right hand corner VE=?_
You are a scientist working in a lab and you come across a Bohr Model. Which element does this Bohr Model represent?
Carbon
Hydrogen
Aluminum
Lithium
You are in a chemistry lab and you see an element with atomic number 6. What is the name of this element?
Lithium
Boron
Carbon
Neon
How many valence electrons does an atom of Nitrogen have in its outer shell?
2
3
5
10
Imagine you are an atom in a chemistry experiment. Which of these would be your valence electron?
Electrons in the second energy level of the atom
Electrons in the outermost energy level of the atom
The atomic number of the atom
Electrons in the first energy level of the atom
This atom has an atomic number of (a) .
This atom has a mass number of (b) .
This atom has an atomic mass of (c) .
This atom has (d) valence electrons.
Match the following
potassium
lithium
magnesium
titanium
sodium
Which side of the periodic table are the nonmetals located?
Draw a Lewis model of N.
John is studying the Lewis dot model of Lithium for his chemistry project. According to the model, how many electrons should he place around Lithium?
1
2
3
4
John is studying the Lewis dot model of Carbon for his chemistry project. According to the model, how many electrons should be around Carbon?
1
3
4
5
Draw a bohr model of Al
Explain the steps to draw a lewis structure!
Protons are also the number of...
(remember charges)
(a)
What is the the outermost shell with electrons?
Shells
Isotope
Orbit
Valence
How many electrons can go in the Second energy level?
2
8
18
32
What are the names of the 2 models that we have been using?
Bohr and Newton Structures
Lewis and Caroll Models
Bohr Model & Lewis Dot Structure
Element & Atom structures
What is a Lewis Dot Structure?
It shows all of the particles in the atom.
Contains protons and neutrons
Only shows the element symbol and it's outer most electron shell
Contains protons and electrons
How many valence (outer) electrons does an Oxygen atom have?
2
6
8
16
What is the atomic number of this element?
17
18
35
35.453
Which Bohr model represents Be?
Which Bohr model represents Neon?
___________ simplify the Bohr Model by showing only the outer valence electrons used for bonding.
Lewis Dot Diagrams
Bohr Models
Electron Clouds
Periodic Tables
Trace pic according to direction to draw a Bohr model of given element.
1] write in P# & N# in nucleus
2] color VE shell green write e over the VE & color the rest of electrons blue
3]write the # of VE in Top right hand corner VE=?_
