Molecular Modeling Flashcards
Six elements that make up most of organic matter
Oxygen
Hydrogen
Carbon
Nitrogen
Sulfur
Phosphorus
Which element does yellow spheres represent in the molecular model kit?
Hydrogen
Which element does blue spheres represent in the molecular model kit?
Nitrogen or phosphorus
Which element does black spheres represent in the molecular model kit?
Carbon
Which element does red spheres represent in the molecular model kit?
Oxygen or sulfur
Describe relationship between number of electrons needed by atom and number of bonds atom must form to get those electrons
The number of electrons needed is the same number of covalent bonds
What kind of chemical bond does each stick or spring represent in the molecular models?
Covalent bonds
For each spring in a molecular model, how many electrons are being shared between atoms?
Two
How many protons are in oxygen?
Eight
How many protons are in phosphorus?
15
How many protons are in sulfur?
16
How many protons are in carbon?
6
How many protons are in hydrogen?
1
How many protons are in nitrogen?
7
What is the atomic number?
The number of protons in the nucleus
What are the three subatomic particles?
Protons
Neutrons
Electrons
How many naturally occurring elements are there?
92
What are electrons shells?
Electrons found in concentric spheres
What is a covalent bond?
When two atoms share one pair of electrons. One electron from each atom.
What is atomic mass?
Number of protons and neutrons in the nucleus
The number of electrons an atom has is _____ to the number of protons
Equal
