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States of Matter
Atoms and Matter
Periodic Table
Organizing the Periodic Table
Bonding
100
The THREE states of matter
What are SOLID, LIQUID, and GAS
100
a postively charged particle, with a mass of 1 amu
What is a PROTON
100
The symbol for GOLD
What is Au
100
Elements in Group 1 of the Periodic Table are Alkali Metals EXCEPT for THIS element
What is HYDROGEN (a nonmetal)
100
the force of attraction that holds two atoms together
What is a CHEMICAL BOND
200
The OPPOSITE process of Melting
What is FREEZING (liquid to solid)
200
a NEGATIVELY charged particle, which has almost no mass
What is an ELECTRON
200
The number of Electrons in a neutral atom of Bromine
What is 35
200
Elements that are only slightly LESS reactive than the Alkali Metals and are not found as pure substances in nature (will ALWAYS be combined with another element in nature)
What are the ALKALINE EARTH METALS (group 2 of the Periodic Table)
200
The TERM for a charged Atom that is formed when an atom loses or gains electrons. Extra points: Atoms that Gain electrons are called THIS, while atoms that Lose electrons are called THAT.
What is an ION Atoms that GAIN electrons are ANIONS (negatively charged) and Atoms that LOSE electrons are CATIONS (positively charged)
300
TWO of the THREE changes of state in which thermal energy is GAINED, and the movement of particles INCREASES.
What are MELTING (solid to liquid), VAPORIZATION (liquid to gas), and SUBLIMATION (solid to gas)
300
a neutrally charged particle, with a mass of approximately 1 amu
What is a NEUTRON
300
A COLUMN on the Periodic Table
What is a group
300
Elements on the Modern Periodic Table are organized by THIS, (not by average Atomic Mass, the way Mendeleev created the first Periodic Table)
What is ATOMIC NUMBER (number of protons in the Nucleus)
300
A compound formed when positive and negative ions combine. NaCl is an example of this.
What is an IONIC COMPOUND
400
The name of the process where liquid changes to gas ONLY at the surface of the liquid
What is evaporation
400
How you figure out the mass number of an atom
What is COUNTING ALL THE PROTONS AND NEUTRONS IN THE NUCLEUS
400
A ROW on the Periodic Table
What is a PERIOD
400
The STABLE, nonmetal, gases are put HERE (They are stable because their outer electron shell is FULL. They are NONreactive), while the MOST reactive nonmetals are THERE (because their outer shell is ALMOST full and are never found uncombined in nature)
What is GROUP 18, the INERT or NOBLE Gases are STABLE and GROUP 17, the HALOGENS are HIGHLY REACTIVE
400
A Type of COVALENT bonding in which atoms SHARE two pairs of electrons. O2 (O=O) and CO2 (O=C=O) are examples of this type of bonding.
What is DOUBLE BONDING
500
The state of matter in which the matter HAS a definite volume, NO definite shape, and the particles SLIDE past each other.
What is liquid
500
Two atoms of the SAME element with DIFFERENT Masses (and therefore, different numbers of neutrons) are called THIS.
What are ISOTOPES
500
Iridium-192 has 77 protons. Iridium-195 has THIS many electrons
What is 77
500
The special Group consisting of the GROUP 3 metals and the Lanthanides period
What is the RARE EARTH METALS
500
A Mixture made of 2 or more elements, at leaset one of which is a metal. They are generally STRONGER and LESS reactive than pure metals
What is an ALLOY