Bonding
TRUE OR FALSE
Full valence shells form bonds.
FALSE!
96% of the body is made from four elements, what are they?
Carbon (C)
Oxygen (O)
Hydrogen (H)
Nitrogen (N)
What is located INSIDE the nucleus of an atom?
protons and neutrons
This is an example of which type of chemical bond where energy is absorbed?
A+B=AB
Synthesis Reaction
Two or more different atoms combined chemically is a...?
compound
Ionic - transfer of electrons
Covalent - sharing of electrons
What are the four types of energy?
Chemical, Electrical, Mechanical, Radiant
2 protons
2 neutrons
2 electrons
In which chemical bond is a molecule broken down and energy is released?
Decomposition Reaction
What is the most abundant inorganic compound?
Water
What polarity is carbon dioxide is an example of?
When valence shells are not full and are unstable, they are considered to be a ________ element.
What is the difference between atomic mass number and atomic number?
atomic mass number - sum of the protons and neutrons that an atom contains
atomic number - equal to the number of protons that the atom contains
In which type of chemical reaction are different molecules made from the original molecules?
Hint: it involves two types of reactions put together...
Exchange Reaction or Single Replacement Reaction
What measures relative concentration of hydrogen ions?
pH
What type of bond has these characteristics?
Weak chemical bonds
Attracted to the negative portion of polar molecule
Provides attraction between molecules
hydrogen bonds
This type of protein is...
Also known as functional proteins
Function as antibodies or enzymes
Can be denatured
globular proteins
What is the process of spontaneous atomic decay?
Radioactivity
Amino acids joining together to form a protein molecule is an example of what type of chemical reaction?
Synthesis Reaction
Explain the difference between organic and inorganic compounds OR give an example of each one.
Organic - contain carbon, covalently bonded usually
- example: glucose
Inorganic - lack carbon, tend to be simpler compounds
- example: water
Is methane gas (CH4) is an example of an ionic or covalent bond?
Hint: think about the number of electrons
covalent
What is the maximum amount that each shell can hold? (shells 1-3)
Shell 1 can hold a maximum of 2 electrons
Shell 2 can hold a maximum of 8 electrons
Shell 3 can hold a maximum of 18 electrons
This is a kind of isotope that is..
Decomposes to more stable isotope
Radioisotope
ATP transferring its terminal phosphate group to glucose to form glucose phosphate is an example of which type of chemical reaction?
Exchange Reaction
This important organic compound holds the blueprints for life...
Nucleic acids