Periodic Table
The number of electrons in the lowest energy level (1)
What is 2 electrons?
Lewis dot structure of Sodium?
What is one?
Symbol for when Sodium loses an electron
What is Na+?
When an electron is shared between the nuclei of two atoms at the same time
What is a covalent bond?
Lewis dot structure of CO2
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The group that has two valence electrons?
What is group 2?
Lewis dot structure of Strontium?
What is 2?
Symbol for when Chlorine gains an electron
What is Cl-?
the overall charge of a particle that is covalently bonded
What is neutral?
Metals have mobile valence electrons, which makes them good at
conducting electricity
The group that has a full valence shell
What are the noble gases?
Lewis dot structure of silicon
What is 4?
What is an ionic bond?
The attraction between a positive ion and a negative ion
The particle formed when atoms share electrons
What is a molecule?
[PO4]2- is an example of a
polyatomic ion
the number of electrons in bromine's outer shell
What is 7?
Lewis dot structure of helium
What is 2?
A pure substance containing two or more elements
What is a compound?
When an atom shares two electrons with another atom
What is a double bond?
Ionic compounds have ____________ melting points, covalent compounds have ___________ melting points
high, low
Halogens have this many valence electrons
Lewis dot structure of tin
What is Sn with 4 dots?
K2O
Lewis dot structure of a bond between 2 nitrogen atoms
What is a triple bond?
when atoms in a molecule share their unpaired electrons, it is considered to be a
coordinate covalent compound