Periodic Table
Elements on the periodic table are arranged by ___________, which represents the number of ____________ in the atom.
Atomic number; Protons
Group 2 on the periodic table are classified as what?
Alkaline Earth Metals
The subatomic particle with a neutral charge and located in the nucleus is know as......
Neutrons
Neutrons
When two or more different elements bonded together it forms a ......
Compound
Water is made of what 3 atoms?
2 Hydrogen and 1 Oxygen
Name the four major macromolecules.
Carbohydrates, Lipids, Proteins, and Nucleic Acids
The letter(s) that represent the element on the periodic table is called the chemical __________.
Symbol
This group is unreactive because they are stable and present as colorless and odorless.
Noble Gases
Atoms on the periodic table are considered neutral and therefore have an equal number of what?
Protons and Electrons
Isotopes are versions of the same element but with a new ______ number.
Hint: Not Neutrons
Mass Number
This type of bond is formed between metals and nonmetals when an electron is transferred to another atom.
Ionic Bond
The bond in a water molecule is a ________ bond. The bond between two water molecules is a _______ bond.
Polar covalent; Hydrogen
Provide an example of a food that is primarily made of lipids.
Oil, butter, cheese, meats (bacon), avocado, nuts, etc.
____________ are the rows on the periodic table and represent elements with the same amount of _______________.
Periods; energy levels.
What nonmetal is NOT found on the right side of the periodic table?
Hydrogen
Rhenium has an atomic mass of 186. What is the number of neutrons in an Re atom.
111 Neutrons
Of the examples below, which is an isotope of Indium?
A. 52 protons, 66 neutrons
B. 49 protons, 68 neutrons
C. 48 protons, 65 neutrons
B. 49 protons, 68 neutrons
2C3H8O has how many carbon, hydrogen, and oxygen atoms?
6 Carbon, 16 Hydrogen, and 2 Oxygen
_________ is when two of the same molecule sticks to one another vs. ___________: when two molecules of different structure are attracted to each other becuase of charges.
Cohesion; Adhesion
Name the monomers for each of the following. In ORDER!!
Carbs:
Lipids:
Proteins:
Nucleic Acids:
Carbs: Monosaccharides
Lipids: Triglycerides, Phospholipids, or Steroids
Proteins: Amino Acids
Nucleic Acids: DNA and RNA or Nucleotides
Tin, Lead, and Flerovium belong to the same _________________ and all have _________ valence electrons
Group/Family; 4
Arsenic, Antimony, and Tellurium are semiconductors and classified as?
Metalloids
Provide the info for the atom of Zinc.
# of Protons=?
# of Neutrons=?
# of Electrons=?
Mass Number=?
Protons= 30
Neutrons= 35
Electrons = 30
Mass Number= 65
(Mass) 18
?
(Atomic #)8
Would represent the nuclear notation of what element?
Oxygen
You have to change the _______ to make the number of atoms of each element equal on both sides of the equation.
Coefficients
Water is a _____________________, meaning it can dissolve almost any substance because of it's polarity.
Universal Solvent
If there are several monosaccharides present (more than 3), then the chain name changes to?
Polysaccharides
____________ is responsible for the first Periodic Table and left blank spaces for new elements to be added.
Dmitri Mendeleev
These silvery-white or gray metals are good conductors of electricity but are separate from other transition metals.
Lanthanides and Actinides
Who is responsible for the gold foil experiment that ultimately discovered the nucleus of an Atom?
Ernest Rutherford
The symbols or naming of isotopes is written in __________ notation.
Nuclear.
Balance the following chemical equation:
____ AlBr3 + ____ K → ____ KBr + ____ Al
1;3;3;1
Sugar and Salt are considered _______________; while oil is considered ___________________.
Hydrophilic; Hydrophobic
A nucleic acid must have what three parts?
1. A sugar
2. A phosphate group
3. A nitrogenous base