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Elements
Atoms
Electrons
The Periodic Table
Metals and Nonmetals
100
an element
What is a substance that cannot be chemically broken down into a simpler substance?
100
This atomic particle has a positive charge.
What is a proton?
100
This is the number of electron that would be in an electron cloud of an element with the atomic number 15.
What is 15 electrons?
100
The letters that are capitalized in the periodic table that represent the element has this name.
What is the chemical symbol?
100
This property of a substance allows it to be pounded into different shapes.
What is malleability?
200
100
What is the number of elements found in the Earth's crust?
200
These negatively charged particles form a "cloud" around the outside of the nucleus of an atom.
What are electrons?
200
The number of electrons found in the first energy level of an element.
What is 2?
200
This man created the very first arrangement of elements as he was looking for a way to identify patterns in their properties.
Who is Dmitri Mendeleev?
200
This property of a substance allows a substance to be drawn iinto a wire.
What is ductility?
300
This element has the atomic number 1.
What is Hydrogen?
300
This is the name given to the measurement of the mass of an atom.
What are atomic mass units?
300
The maximum number of electrons allowed in the second energy level of an electron cloud.
What is 8?
300
The name given to the elements in the far right of the Periodic Table that normally don't make compounds.
What are the Noble Gases?
300
The non part of these substances are not good conductors of heat and electricity.
What are nonmetals?
400
This element has the atomic number 2.
What is Helium?
400
This is the man that developed the Atomic Theory of matter in the early 1800's.
Who is John Dalton?
400
The name given to an element that has an uneven number of protons to neutrons in the nucleus.
What is an isotope?
400
The name given to the vertical arrangement of elements.
What is a group?
400
This property is the that a substance reflects light.
What is luster?
500
This is what you get when you combine 2 or more elements together.
What is a compound?
500
These particles that reside in most nucleii have no electrical charge, but do add to the mass of an atom.
What are neutrons?
500
The name given to the total mass of the nucleus of an atom.
What is the mass number?
500
The majority of the elements in the Periodic Table are this state of matter at room temperature.
What is a solid?
500
It is possible to make copper into a wire because it has this property.
What is ductility?