Show:
Building Blocks
atom
bonds
water
grab bag
100
Positively charged subatomic particle
What is a proton?
100
Particles found in the nucleus of an atom.
What ae protons and neutrons?
100
Weak bonds that occur between hydrogen and oxygen, nitrogen or other partially negative charged atom
What is a hydrogen bond?
100
Bonds that form between water molecules
What are hydrogen bonds?
100
A molecule that releases H+ into a solution
What is an acid?
200
A neutral atom with 6 protons has __ electrons.
What is 6?
200
An atom with an atomic number of 8 and an atomic mass number of 15 contains __ neutrons.
What is 7 neutrons?
200
The bond formed between charged atoms such as sodium and chloride
What is an ionic bond?
200
Characteristic of water that allows water striders to remain on the surface of a pond.
What is surface tension (cohesion)?
200
The loss of an electron by one atom concurrent with the gain of the electron by another atom.
What is oxidation-reduction (redox)?
300
The smallest unit of an element.
What is an atom?
300
The maximum number of electrons found in the first energy shell.
What is 2?
300
Bond where two atoms share electrons equally
What is nonpolar covalent?
300
Large amounts of energy are needed to raise the temperature of water
What is high specific heat?
300
Molecule that can attract H+ if a solution starts to become to acidic and can release H+ if a solution becomes to basic.
What is a buffer?
400
Causes an electron to get "excited" and move further away from the nucleus?
What is energy?
400
Atoms with the same number of protons, but different numbers of nuetrons.
What are isotopes?
400
Hydrophobic covalent bond
What is a nonpolar covalent bond?
400
Water molecules are arranged in an orderly fashion with maximum distance between the molecules.
What is ice is less dense than liquid water?
400
Chemical source of acid rain
What are sulfur dioxide and nitrogen oxides? (from car exhaust and factory emissions)
500
Number of valence electrons in oxygen, which has an atomic number of 16.
What is 6?
500
Biological or medical use of a radioisotope
What is dating fossils, tracing biological pathways or processes, diagnosing disease or treating cancer?
500
Type of bond found within a single water molecule
What is polar covalent?
500
Two characteristics of water that work together to move water up a tree aginst gravity
What are adhesion and cohesion?
500
Molecule that is the waste product of photosynthesis and reactant for cellular respiration.
What is oxygen?