What is atoms?
Atoms
Examples
what is?
100
What is a chemical structure?
The arrangement of atoms in substances
100
Why does a marshmallow have a lower melting point than a sword?
Marshmallow is made up of nonmetals has longer bond lengths than sword dose.
100
What is one example of a covalent bond?
Nonmetal and nonmetal
100
What is a molecular formula?
A chemical formula that shows the number and kinds of atoms in a molecule, but not the arrangement of atoms
200
What is a bond length?
The average distance between the nuclei of two bonded atoms
200
What can be learned from looking at a model of a compound?
How many oxygens and how many hydrogens?
200
What is an ionic bond?
A bond is formed by the attraction between oppositely charged ions
200
What is an empirical formula?
The composition of a compound in terms of the relative numbers and kinds of atoms in the simplest form
300
What is a bond angle?
The angle formed by two bonds to the same atom
300
What is the difference between exothermic and endothermic?
Endothermic is a chemical reaction that holds in heat. Exothermic is a chemical reaction in which heat is released to the surroundings.
300
What is one example of a metallic bond?
metal and metal =copper,gold,silver,iron,brozen
400
What is a covalent bond?
A bond is formed when atoms share one or more electrons
A nonmetal plus a nonmetal
400
When does an atom either become a positive ion (cation) or a negative ion (Anion)?
When loose or gain electrons
400
What is a valence electron?
An electron that is found in the outermost shell of an atom and determines the atom's chemical properties
500
What is a chemical bond?
The attractive force that holds atoms or ions together
500
Draw the Electron Dot Diagram for Aluminum.
