Atoms
Molecules
Extended Structures
Elements/Bonds
100
This is the smallest particle into which an element can be divided.
What is an atom?
100
This is a group of two or more atoms held together by a chemical bond.
What is a molecule?
100
True or False? -- At 24 molecules, polyester is the largest extended structure. Extended structures cannot grow any larger than 24 molecules.
What is "false".
100
This is what is created when atoms come together and share their electrons to create a molecule.
What is a chemical bond?
200
The meaning of the word atom is...
What is "cannot be divided".
200
What is the common name of H2o?
What is water?
200
This is what the subunit of molecules is called in an extended structure.
What is an "ester"?
200
Identify how many bonds, elements, and atoms are present in this ammonia molecule.
What are 3 bonds, 2 elements, and 4 atoms.
300
This is the subatomic particle of an atom that measures its "atomic mass".
What is a proton?
300
What is the common name of CO2?
What is Carbon Dioxide?
300
Fill in the blank! -- Salt is made up of 4 chlorine atoms and 4 sodium atoms. The ratio of chlorine to salt is 1:1. That means that there is an equal number of each atom in the molecule. This is an example of identifying the ______ of atoms in a molecule.
What is the ratio of atoms in a molecule?
300
In molecular models, how can we identify the number of atoms, elements, & bonds?
1. Count the atom spheres that represent the atoms.
2. Count the number of colors.
3. Count the sticks.
400
This is the positively charged subatomic particle in the nucleus of an atom.
What is a proton?
400
True or False? -- All molecules contain the same number of atoms. Explain why this is true or false.
What is false? -- All molecules DO NOT contain the same number of atoms. The number of atoms in different molecules varies greatly.
400
In the molecule H2O, there are how many hydrogen atoms? How many oxygen atoms? -- What is the name of this molecule?
There are 2 hydrogen atoms & 1 oxygen atom. -- What is water?
400
Identify the number of atoms and elements in this compound (extended structure). What elements are present in this compound? Can you guess the name of this extendned structure? -- C12H22O11
There are: 3 elements, 45 atoms. -- Sugar