Chemistry Quiz
Science Study Guide
Atomic Theory-
What are atoms?- The are the building blocks of matter
What are the 3 subatomic particles and their charge- Protons +, Neutrons=, Electrons-
How can we determine the # of protons in an atom- The atomic #
Atomic Number- Is the amounts of protons in an atom, it’s the same as the number of electrons
Atomic Mass- Average mass of all the isotopes of an element
What is an Ion- An ion is an atom of molecule with a charge positive or negative
What is a cation- Positively charged
What is a anion- Negatively charged
What is an isotope- Atoms of the same element with different number of neutrons
What is a group - The have 18 columns
What is a period- The rows are a period, there are 7 periods
What are metals- All metals are solid at room temperature.
What are metals characteristics- Lustrous, magnetic, ductile
What are metalloids- All metalloids are solid at room temperature. Properties of metals and non-metals
What are metalloids properties- Metallic, brittle
What are nonmetals- Gases at room temperature
What are nonmetals properties- Not ductile, malleable, or magnetic
What are valence electrons- Electrons on the outermost shell that will bond with other atoms (highest energy)
How do you know how many valence electrons an atom has- By their group #
What is the octet rule- Atoms like to have 8 valence electrons
Why do chemical families share similar properties
Why are noble gasses inert- They have 8 valence electrons which makes them stable
Ionic bond definition- the result of attraction between ions.
Covalent bond- An atom shares one or more pairs of electrons with another atom and forms a bond
Nonpolar covalent bond definition- Electrons are equally shared between two atoms
Polar covalent bond definition- electrons are unequally shared between two atoms
Metallic bond definition- A force that holds atoms together in a metallic substance
Hydrogen bond definition- Intermolecular force, bonds water together
Molecule- Formed when two or more atoms are joined together chemically
Compound- formed when two atoms of two or more different elements join together chemically
Chemical Bond- The force of attraction that holds to or more atoms together
Metal-Metal-Metallic
Metal-nonmetal-Ionic
Nonmetal- nonmetal-Covalent
Noble gasses- Non metal elements that are not reactive
Lanthanide- soft metal
Actinides- radioactive metals
Science Study Guide
Atomic Theory-
What are atoms?- The are the building blocks of matter
What are the 3 subatomic particles and their charge- Protons +, Neutrons=, Electrons-
How can we determine the # of protons in an atom- The atomic #
Atomic Number- Is the amounts of protons in an atom, it’s the same as the number of electrons
Atomic Mass- Average mass of all the isotopes of an element
What is an Ion- An ion is an atom of molecule with a charge positive or negative
What is a cation- Positively charged
What is a anion- Negatively charged
What is an isotope- Atoms of the same element with different number of neutrons
What is a group - The have 18 columns
What is a period- The rows are a period, there are 7 periods
What are metals- All metals are solid at room temperature.
What are metals characteristics- Lustrous, magnetic, ductile
What are metalloids- All metalloids are solid at room temperature. Properties of metals and non-metals
What are metalloids properties- Metallic, brittle
What are nonmetals- Gases at room temperature
What are nonmetals properties- Not ductile, malleable, or magnetic
What are valence electrons- Electrons on the outermost shell that will bond with other atoms (highest energy)
How do you know how many valence electrons an atom has- By their group #
What is the octet rule- Atoms like to have 8 valence electrons
Why do chemical families share similar properties
Why are noble gasses inert- They have 8 valence electrons which makes them stable
Ionic bond definition- the result of attraction between ions.
Covalent bond- An atom shares one or more pairs of electrons with another atom and forms a bond
Nonpolar covalent bond definition- Electrons are equally shared between two atoms
Polar covalent bond definition- electrons are unequally shared between two atoms
Metallic bond definition- A force that holds atoms together in a metallic substance
Hydrogen bond definition- Intermolecular force, bonds water together
Molecule- Formed when two or more atoms are joined together chemically
Compound- formed when two atoms of two or more different elements join together chemically
Chemical Bond- The force of attraction that holds to or more atoms together
Metal-Metal-Metallic
Metal-nonmetal-Ionic
Nonmetal- nonmetal-Covalent
Noble gasses- Non metal elements that are not reactive
Lanthanide- soft metal
Actinides- radioactive metals