Bonds
A force of attraction between atoms or a group of atoms due to the sharing or transferring of electrons.
What is a chemical bond?
CCl4 is a molecule containing which atoms?
1 carbon (C) atom and 4 chlorine (Cl) atoms
The force of attraction between molecules of the same substance so that they tend to stay together.
What is cohesion?
A model of an atom in which each dot represents a valence electron.
The number of protons in an atom
What is the atomic number?
This bond forms between atoms of nonmetals when they share valence electrons.
What are covalent bonds?
Caffeine is a chemical that is in coffee and black tea. A caffeine molecule has 8 carbon (C) atoms, 10 hydrogen (H) atoms, 4 nitrogen (N) atoms, and 2 oxygen (O) atoms, what is the chemical formula?
C8H10N4O2
The force of attraction between molecules of different substances so that they tend to stick together.
What is adhesion?
During a chemical bonding the arrow pointing from left to right represents the reactants change into the products during the reaction. This number in the atom never changes.
What are protons?
The number of protons in an atom could never change or it would become a different element.
The sum of the protons and neutrons in the nucleus of an atom.
What is atomic mass number?
A certain molecule is composed of two atoms that are sharing electrons. The atoms pull on the shared electrons with an equal strength causing this type of bond.
What is a nonpolar bond?
The compound silver nitrate is made up of silver (Ag), nitrogen (N), and oxygen (O). The chemical formula is AgNO3. How many atoms of each element are in a silver nitrate molecule?
1 silver atom, 1 nitrogen atom, and 3 oxygen atoms.
An atom or group of atoms that has a positive or negative charge.
What is an ion?
Two atoms share two pair of electrons.
What is double bond?
Electrons that are in the highest energy level (the energy level farthest from the nucleus) of at atom of an element
What are valence electrons?
This bond forms between molecules and not between atoms.
What are hydrogen bonds?
Methane is the main component in natural gas. It's chemical formula is CH4. This is the total number of atoms in a single methane molecule.
What are 5 atoms?
What is the most stable electron configuration for atoms?
Two atoms share three pairs of electrons.
What is a triple bond?
Ionic and ________ stances can dissolve each other.
What are polar substances?
What is hydrogen bonding?
Substances that undergo a chemical change are followed by an arrow. The new substances formed as a result of a chemical change are found on the right side of the arrow. These can be written as chemical equations.
What are reactants and products?
An atom can achieve a stable electron configuration (making its highest energy level have a full set of electrons) by ____________________ .
Transferring or sharing electrons.
Water forms a rounded bead and the "skin" is formed as a result of hydrogen bonding. This is also known as __________.
The change phase from liquid to gas.
What is evaporation?