Periodic Table
The number of electrons in the lowest energy level
What is 2 electrons?
Sodium loses an electron. Draw the new Symbol with charge
What is Na+?
When an electron is attracted to the nuclei of two atoms at the same time
What is a covalent bond?
the combination of chemical symbols and possibly numbers is called a....?
What is the chemical formula?
The group that has two valence electrons?
What is group 2?
The number of dots around Calcium?
What is 2?
Chlorine gains an electron. Draw the new symbol with charge
What is Cl-?
The charge of a particle that is covalently bonded
What is neutral, no charge
protons and electrons are equal
The number of Valence electrons in Argon
What is 8
The group that has a full outer shell
What are the noble gases in group 18?
The number of dots around Silicon
What is 4?
The particle formed when atoms share electrons
What is a molecule?
the bond between a metal and a nonmetal
What is covalent bond.
the number of electrons in Bromine's outer shell
What is 7?
the number of dots around Helium
What is 2?
A pure substance containing two or more elements
What is a compound?
Draw the bond for CO2
water is considered a polar compound because it shares electrons__________. Equally or Unequally?
unequally
What side of the periodic table are metals on?
Left side...except for Hydrogen!
The dot diagram for Tin
What is Sn with 4 dots?
When atoms lose electrons they become_____. When atoms gain electrons they become _______.
Positive, Negative
Draw the bond for H2O
....
A ________ bond is formed when many atoms share their pooled
What is metallic compound.