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Periodic Table
Radioactivity
Physical Changes/Properties
Periodic Table 2
Ch.7 Grab Bag
100
Most of the elements on the Periodic Table are ___________
What are metals
100
A ________ of an atom has the same number of protons, but a different number of neutrons in the nucleus.
What is an isotope
100
List three physical properties.
What is color, length, shape, density, mass, volume, boiling point, etc
100
The atomic number of an element tells you....
How many protons are in an atom of that element
100
Name three properties of metals
What is conductive, malleable, luster, ductile
200
The elements are arranged in the periodic table primarily by their ___________
What is atomic numbers
200
__________________ occurs when an unstable atomic nucleus emits one or more particles and energy
What is radioactive decay
200
______________ is the ability of a material to transfer heat by collisions between its particles.
What is (thermal) conductivity
200
A horizontal row of element is called a _________.
What is a period.
200
List the 3 states of matter in order from greatest thermal conductivity to least.
What is solid, liquid, gas
300
Group 18 on the periodic table has been named the _____________.
What are the noble gases.
300
The three isotopes of carbon are named ______ , _______, and _____.
What is carbon-12, carbon-13, and carbon-14
300
The melting and boiling point of a substance are determined partly by the ___________ force among its particles.
What is the attractive force
300
A vertical column of elements on the periodic table is called a ____________.
What is a group.
300
__________ is the time that it takes for a sample of a radioactive isotope to decay to half of its original mass.
What is a half-life
400
The atomic mass of a number is the sum of _____________ and _____________ in an atom of that element.
protons and neutrons
400
When an isotope of an element releases a particle/energy and becomes a new element, the process is called ______________.
What is transmutation
400
A change in a state of matter is a _________ change.
What is a physical change
400
The three regions of the periodic table (which arrange elements with particular properties) are
What is metals, nonmetals, and semimetals (or metalloids)
400
What can the group number of an element tell you about that element?
What is the number of valence electrons
500
Four pieces of information generally found on each block of the periodic table are
What is element name, atomic number, symbol, atomic mass and/or state of matter
500
All elements with atomic numbers greater than _________ are synthetic elements.
What is 92
500
Give an example of a physical change and a chemical change.
physical change: change in state, mixing, dissolving, chemical change: burning, etc
500
Most of the elements that are found in nature belong to this region of elements on the periodic table
What is nonmetals
500
When creating a synthetic element, scientists often use this machine.
What is a particle accelerator