Vocabulary
All About Metals
Structure of an Atom
Periodic Table of Elements
Chemical Formulas
100
substance made up of only one type of atom
What is an element
100
a material that can transfer electricity
What is a conductor
100
the center of an atom
What is the nucleus
100
the atomic number of of an element is the number of ______________ in its nucleus
What are protons
100
All ___________ is made up of atoms
What is matter
200
arrangement of elements by similar properties
What is the periodic table of elements
200
Materials such as glass, plastic, and rubber that do not conduct electricity
What is an insulator
200
subatomic particle with no charge
What is a neutron
200
In the periodic table elements are arranged by atomic number and
What is similar properties
200
shows which elements and how many atoms of each are in a compound
What is a chemical formula
300
substance made up of the atoms of two or more elements
What is a compound
300
Means a metal can be drawn into wire. Copper and Aluminum are ____________.
What is ductile
300
subatomic particle with a positive charge
What is proton
300
Each box in the Periodic Table contains the atomic number, the element name, and the _____________.
What is the chemical symbol
300
The chemical formula for water is
What is H2O
400
smallest unit of an element with all the properties of that element
What is an atom
400
Can be hammered or rolled into a thin sheet
What is malleable
400
The number of electrons in atoms found naturally is equal to the number of _____________ because atoms have no overall electrical charge.
What is protons
400
Elements in the periodic table are categorized in four groups. Name the four groups.
What is metal, nonmetal, metalloid, and made artificially
400
NaCl is the chemical formula for
What is table salt
500
two or more atoms joined together
What is a molecule
500
Define the word alloy
What is a mixture of metals
500
Atoms are held together by the attraction between
What is electrons and protons
500
This scientist was the first person to publish his grouping of elements. He grouped them by atomic mass number.
What is Dmitri Mendeleev
500
How many of each type of element are in this compound? C6H12O6
What is 6 Carbon, 12 Hydrogen, and 6 Oxygen
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