Atoms
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What is the smallest particle of matter?
Atom
What are found in the nucleus?
Protons and Neutrons
What is a way to organize all the chemical elements based on their properties?
Periodic Table
Who came up with the best arrangement of the elements for the periodic table by looking at the physical and chemical properties of the elements?
What is substance that cannot be broken down into any other substances by chemical or physical means?
Element
“Atoms” is from a Greek word meaning _______________?
uncuttable
When atoms combine, they can make __________________.
molecules
What is the vertical column called on the periodic table?
group/family
What are called periods on the periodic table?
horizontal rows
What is a substance made of two or more elements chemically combined in a set ratio?
Compound
Atoms are the __________ _________ __________ of all matter.
basic building blocks
What are the 3 types of subatomic particles?
1.) Protons
2.) Neutrons
3.) Electrons
What is an extremely reactive metal group?
Alkali
Which metal group is important for living organisms?
Transition
What are particles that are smaller than the atom. These include protons, neutrons, and electrons?
Subatomic Particles
The heavy particles of the atom are in the ____________________.
What forms between two atoms when valence electrons move between them?
Chemical Bonds
What are the Radioactive elements group called?
Actinides
Non-metals
What are any of the forms of an element that differ in the number of neutrons in an atom?
Isotope
Is the underlined and bolded word...True or False.
If the answer is false, what is the correct answer for the underlined and bolded word.
Electrons repel each other and move around so fast that the atom acts like a liquid.
False. solid
Is the underlined and bolded words...True or False.
If the answer is false, what is the correct answer for the underlined and bolded word.
Living things are composed of 4 basic elements:
Carbon
Oxygen
Hydrogen
Neon
False. Nitrogen
Are the underlined and bolded words...True or False.
If the answer is false, what is the correct answer for the underlined and bolded word.
In the modern periodic table elements are arranged by atomic mass.
false. atomic number
Are the underlined and bolded words...True or False.
If the answer is false, what is the correct answer for the underlined and bolded word.
Characteristics of Metals are:
high electrical conductivity
no luster
ductile & malleable
on the left side
false. high luster
What is any member of a group of elementary subatomic particles that interact by means of the strong force and are believed to be among the fundamental constituents of matter?
Quark