Show:
Periodic Table
Electron Dot Diagrams
Ionic Bonds
Covalent Bonds
Chemical Formulas
100
The number of electrons in the lowest energy level
What is 2 electrons?
100
The number of dots around Sodium?
What is one?
100
Sodium loses an electron and is called a
Cation
100
True or false, in covalent bonding, the shared electrons are are equally attracted to two different nuclei.
True.
100
The element that comes first in an ionic bond is the
metal
200
The group that has two valence electrons?
What is group 2?
200
The number of dots around Strontium?
What is 2?
200
Chlorine gains an electron and is called a
anion
200
the overall charge of a particle that is covalently bonded
What is neutral?
200
The chemical formula for 2 atoms of carbon and 4 atoms of hydrogen
What is C2H4?
300
The group that has a full outer shell
What are the noble gases?
300
The number of dots around silicon
What is 4?
300
Ionic bonds are created because ions are... (hint: ions are charged particles)
attracted to each other by their opposite charges.
300
The particle formed when atoms share electrons
What is a molecule?
300
What is AuCl3?
Gold chloride
400
the number of electrons in bromine's outer shell
What is 7?
400
the number of dots around helium
What is 2?
400
Which will have a strong bond between the ions. NaCl or MgO? Explain.
MgO since the Mg has a 2+ charge and the O has a 2- charge, there is a stronger attraction.
400
Draw the covalent bond of two nitrogen atoms.
Triple bond
400
The number of hydrogen atoms in this: 4C6H12O6.
48
500
The atomic mass of elements is listed as decimals and not whole numbers because...
The atomic mass is an average of the element's isotopes. (Isotopes are same element, so same number of protons, but different numbers of neutrons.)
500
The dot diagram for tin?
What is Sn with 4 dots?
500
What is the chemical formula for Iron II and Chlorine?
FeCl2
500
Draw the covalent bond of carbon monoxide.
This is an example of uneven sharing. Carbon shares two of its electrons, but oxygen shared 4 of its electrons.
500
the total number of shared atoms in a molecule of carbon dioxide
8