Atomic Systems Review

__________________ is anything that has mass and takes up space matter

The tiniest particles of which all things are made are ____________. atoms

The basic structural components of the typical atom are ___________, _________, and _____________. Protons, neutrons, electrons

Protons and neutrons comprise the _____________ of an atom. nucleus

______________ have a positive charge. protons

_____________ have a negative charge. electrons

_______________ have no charge at all. neutrons

An ______________ is a form of matter that is made up of one type of atom element

The number of __________ in an atom of an element determine the type of element. protons

A(n) _____________ of an element contains a different number of neutrons. isotope

The ___________________ organizes the elements by atomic mass. Periodic table

Every element is represented by its __________________. Chemical symbol

The __________________ indicates the number of protons and electrons in element. Atomic number

The ________________ of an element tells the weighted average mass of its isotopes. Atomic mass

Use the information on the left to determine the chemical symbol for the element. 6CCarbon C

How many protons are contained in one atom of carbons? 6CCarbon

How many neutrons are contained in one atom of carbon? 6CCarbon

How many electrons are contained in one atom of carbon? 6CCarbon

The periods of the periodic table tell the number of _____________ an element has. shells

_____________ are malleable and ductile, generally shiny and good conductors of heat and electricity, and most are solid at room temperature. metals

________________ have characteristics of both metals and nonmetals. metalloids

______________ are usually dull in appearance, most are poor conductors of heat and electricity, and many are gases at room temperature. nonmetals

Two or more atoms of the different elements may combine to form a ______________. compounds

What is the chemical formula for salt? NaCl

The chemical formula, H 2 O 2 contains what two elements? Hydrogen and Oxygen

The chemical formula, NaHCO 3 contains how many atoms of oxygen? 3

The chemical formula, CaCO 3 contains how many atoms of calcium? 1

A chemical formula represents a _____________ reaction of the elements involved. chemical

The properties of a ___________ are different from those of the elements it is made from. compound

When two or more substances (elements or compounds) come together but don’t combine to make a new substance, a ____________ results. mixture

_________________ mixtures are the same throughout. homogeneous

You can see the different parts in a _____________ mixture.

The compounds in yellow represent which part of the chemical equation? SO 3 + H 2 O H 2 SO 4 reactants

The compounds in red represent which part of the chemical equation? SO 3 + H 2 O H 2 SO 4 product

Is the following chemical equation balanced? 2H 3 AsO 4 → As 2 O 5 + H 2 O no

Don’t forget to study common compounds, balancing chemical equations, and predominant earth elements.