Periodic Table
A verticle column of elements is called___and a horizontal row of elements are called___.
What are groups and periods?
The electron energy model.
Who is Niels Bohr?
When metal elements lose electrons to nonmetal elements to become stable.
What are ionic bonds?
Electrons shared between nonmetals and nonmetals
What are covalent bonds?
2 atoms are in a ___bond
How many atoms are in an ionic bond?
The class of elements that make up the stair ladder___
What are metalloids?
Each "ring" in the Bohr model represents the number of__in an atom.
What are energy levels?
What are positively charged ions called?
cations
protons in the nucleus attract to shared electrons in the bond
What is the main force that holds together atoms in a covalent bond?
these elements are left of the stair ladder___
these elements are right of the stair ladder___
unlike
What are metal, nonmetals and are two-element more alike or unlike if they are farther apart?
The element in period 4 group 17 is___
What is bromine?
This element has 4 energy levels in the Bohr model.
How many energy levels are in copper?
What does Aluminum do to become stable?
lose 3 electrons
double covalent bonds
What kind of covalent bond shares 2 pairs of electrons?
states as you move through a period element properties change in repeating, regular patterns and argon which was put infront of potassium because of atomic number
What is the priodic law and an example of the periodic law?
Updated the periodic table by arranging elements by increasing atomic mass.
Who is Henry Moseley?
This element has 7 dots on the dot diagram.
What is the electron dot diagram of chlorine?
What holds atoms together in an ionic bond?
What holds atoms together in an ionic bond?
opposite electrical charged ions
C3N4
What is the correct formula when Carbon bonds to Nitrogen
Democritis,Dalton,Thomson,Rutherford,Bohr
Who are all the scientist who contributed with the atomic theory in order?
Created the first periodic table and arranged elements by atomic mass.
Who is Dmitri Mendeleev?
This element has 2,8,7 for each energy level in the Bohr model.
How many electrons are in each energy level of the Bohr model of chlorine?
becoming charged
What does the term "ionizing" mean?
4 electrons are in a ___bond
How many electrons are in each covalent bond?
gains 3 electrons
What does a Nitrogen atom do to become stable?