Draw a Bohr Model for element: K
Varies
Draw Cl
How many valence electrons does Group 1 have?
1
What is the first step in drawing a Lewis Structure?
Count valence electrons
How many more electrons do Group 17 elements need?
1
How many electrons are in the outermost shell of a noble gas?
8 except for Helium which is 2
What is the atomic mass of Copper?
63.546
How many protons do Cesium have?
55
Draw a Bohr Model for element: S
Varies
How many more electrons do Group 2 elements need?
6
How many bonds can Carbon form?
4
How many more electrons do Group 1 elements (not hydrogen) need?
7
Draw a Bohr Model for element: Al
Varies
Which element in CO2 is the central atom?
Carbon
Draw a Bohr Model for element: C
Varies
How many VE are there for F?
7
Which element in CO2 can form the most bonds?
Carbon
It is the number of electrons in the outermost shell of an atom
valence electrons
If a molecule has a positive charge, you must ________ electrons.
Remove
Group 1(Alkali Metals) have how many valence electrons?
1
Another name for a single bond.
Sigma Bond
What does Kr stand for?
Krypton
What is the fifth step in drawing a Lewis Structure?
Check the central atom
Complete the Lewis Structure for CO2: O C O
O (2 lone pairs) = C = O (2 lone pairs)
How many electrons do Y have?
39
What does Au stand for?
Gold
_________ structures are two or more valid Lewis Structures for a single molecule.
Resonance
How many more electrons do Group 13 elements need?
5
Draw a Bohr Model for element: Ca
Varies
What does I stand for?
Iodine
What does Sn stand for?
Tin
What is the fourth step in drawing a Lewis Structure?
Distribute remaining electrons
If the central atom does not have an octet when you've distributed the electrons, how can you fix it?
Move electrons from outer atoms - form double and triple bonds
Draw a Bohr Model for element: N
Varies
Draw Nitrogen
The number of electrons to be drawn is equal to the ___________________
atomic number/# of protons
Which group of elements will not form bonds with others?
Group 18
How many shells do the elements on period 2 have?
2
How many total valence electrons are found in a molecule of CO2?
16
How many Neutrons does Hg have?
121
Draw a Lewis Structure for water.
H - O (2 lone pairs) - H
How many protons do Pt have?
78
Another name for a double or triple bond.
Pi Bond
What does Ba stand for?
Barium
How many protons do Osmium have?
76
What is the third step in drawing a Lewis Structure?
Connect atoms with a single bond
How many electrons do B have?
5
Draw a Lewis Structure for hydrobromic acid.
H - Br (3 lone pairs)
How many VE are there for K?
1
True or False: Group 13/3A have 13 valence electrons
False
How many valence electrons does Group 15 have?
5
How many electrons can be in the second and third shell of a Bohr's model?
8
Draw Aluminium
How many electrons do Cn have?
112
How many valence electrons does halogens(group 17) have?
7
What is the atomic mass of V?
50.942
What group does this element belong to?
2
How many valence electrons does Group 14 have?
4
Draw a Lewis Structure for hydrosulfuric acid.
H - S (2 lone pairs) - H
How many valence electrons does Group 18 have?
8
In this model of the atom, the electrons travel around the nucleus in well-defined circular paths known as
shells/energy levels
Draw Mg
Draw S
The ____ rule states that hydrogen needs 2 valence electrons.
Duet
Which element can never be the central atom in a Lewis Structure?
Hydrogen
Draw a Bohr Model for element: Si
Varies
Which type of model is this?
Bohr model
Draw a Bohr Model for element: H
Varies
How many Neutrons does Ga have?
39
How many valence electrons does Group 16 have?
6
Draw Ne
How many protons do Cobalt have?
27
Who created Bohr's model?
Niels Bohr
How many more electrons do Group 15 elements need?
3
Draw a Lewis Structure for Cl2CO.
(x2) Cl (3 lone pairs) - C = O (2 lone pairs)
How many Neutrons does Ru?
57
How many electrons do Mn have?
25
How many valence electrons does Group 13 have?
3
How many valence electrons does Group 2 have?
2
Draw a Bohr Model for element: Ne
Varies
How many valence electron does this atom have?
3
If a molecule has a negative charge, you must ________ electrons.
Add
How many more electrons do Group 16 elements need?
2
How many Neutrons does Sr have?
50
How many electrons can be filled in the first shell?
2
How many more electrons do Group 14 elements need?
4
How many valence electrons does Group 17 have?
7
The _____ rule states that all elements need 8 valence electrons.
Octet
How many more electrons do Group 18 elements need?
0
What is the atomic mass of Carbon?
12.011
What is the second step in drawing a Lewis Structure?
Choose the central atom
Draw Li
How many protons do Cr have?
24
What is the atomic mass of Lithium?
6.941
How many Neutrons does Xe have?
77
Draw Be
Draw a Bohr Model for element: He
Varies