SCIENTIFIC METHOD
Mention the first step of the scientific method
Make an observation
What is the name of elements located in the last group of the periodic table?
Noble gasses.
Bond between a metal and a nonmetal
Ionic bond
What are the letters that repesent the 4 orbitals?
s,p,d,f
How many groups are there in the periodic table?
18
What is the last step of the scientific method?
It becomes a Law
What is the name of elements located in the first group of the periodic table?
Alkali metals
What number determines if a covalent bond is polar or nonpolar?
0.5
How many energy levels are there?
7
Rows on the periodic table are called...
Periods
What is the third step of the scientific method?
Make a hypothesis
What is the name of elements located in the second group of the periodic table?
Alkaline earth metals
Bond between 2 nonmetals
Covalent bond
How many electrons can a d orbital hold up?
10
How many elements are there in the periodic table?
118
What do we do after stating a hypothesis?
Experiment
Mention 3 scientists involved in the evolution of the periodic table.
Antoine Lavoisier, Johan Dobereiner, Julius Meyer, John Newlands, Dmitri Mendeleev, Henry Moseley.
The electrostatic force that holds oppositely charged particles together in an ionic compound is referred to as a...
Ionic bond
Electrons that are located in the last level of energy of the atom.
Valence electrons
Columns on the periodic table are called...
Groups or families
What is the definition of scientific method?
The procedure we use to answer questions about the order of nature.
What is the name of elements located in group 17 of the periodic table?
Halogens
A positively charged ion is called a...
Cation
Write the electron configuration of Phosphorus
1s2 2s2 2p6 3s2 3p3
Mention the 3 main categories of the elements?
Metals, Metalloids and Nonmetals