Tugas terstruktur: 40 Vocabulary

VOCABULARRY	MEANING
Ionic bond	Ionic bonding is when an electron is traded between atoms in order to have full outer shells.
Allotropes	Different forms of the same element
Synthesis Reaction	2 or more substances that combine to make another.
Quarks	Smaller particles in neutrons and protons.
Acid	there are several ways to define an acid, but they include any chemical that gives off protons or H+ in water. PH acid less than 7 and give red colour in litmus paper.
Atom	Element composed of one type, the {blank}.
Mass Number	This number is the sum of the number of protons and neutrons.
Metalloids	Has properties of both nonmetals and metals
Metallic Bonding	Positively charged metallic ions surrounded by a electron cloud.
Transitional Elements	Between groups 1 and 2, and 13 and 18.
Molecule	A neutral molecule that forms as a result of electron sharing.
Neutrons	Particles in a atom with no charge.
Nonmetals	Usually gasses or brittle solids at room temperature.
Oxidation Number	Tells you how many electrons an atom has gained or lost.
Polyatomic Ion	Positively or negatively charged, covalently bonded group.
Periodic Table	A table filled with elements in order of atomic numbers, etc.
Protons	Particles in a atom with a positive charge.
Products	Substances that are made.
Atomic Number	Number of protons in an atom is equal to a number called {blank}.
Average Atomic Mass	Is the weighted average mass of its isotopes.
Binary Compound	Composed of two elements.
Boiling Point	The point in temperature when the liquid starts to boil.
Buoyancy	Ability of a fluid to exert an upward force on an object immersed in it.
Chemical Formula	A formula that shows what elements are in a compound and what it will become.
Chemical Bond	Force that holds atoms together in a compound.
Chemical Reaction	More than one substances turning into other substances.
Groups	The vertical columns in the periodic table.
Heat of Fusion	The energy required to change a substance from a solid to a liquid at its melting point.
Heat of Vaporization	Amount of energy required for a liquid to become a gas.
Coeffecients	Numbers in front of each substance in a equation.
Combustion Reaction	Substance reacts with oxygen to make heat and light.
Covalent Bond	Attraction formed when elements share electrons.
Decomposition Reaction	One substance breaks down, into 2 more.
Diatomic Molecule	Consists of 2 atoms of the same element in a covalent compound.
Double Displacement Reaction	Two elements replace another to make a product.
Distillation	The process of separating mixtures by boiling a liquid and then recovering the cooled gas.
Electron	A particle of an atom that orbits the atom's nucleus and carries a negative charge
Bond energy	The energy required to break a given chemical bond.
Bond length PH scale	The distance between the nuclei of the two atoms that are connected by a bond. The pH measures the activity of the hydrogen ion in substances. If a substance has a pH less than 7 it is said to be acidic. If its pH is greater than 7 then it said to be basic or alkaline.