The Atom
Scientists
Scientific Method
Elements of the Periodic Table
The Nucleus
100
A tiny particle that is found in everything.
What is an atom?
100
Devised a theory of atoms.
Who are Greek philosophers?
100
A way or process used to investigate what is happening around you.
What is science?
100
Groups 1 and 2 along with Groups 13 to 18 are called...
What are representative elements?
100
Atomic number.
What is the number of protons and electrons?
200
Negatively charged particles.
What is an electron?
200
He said that all matter is made up of atoms.
Who is John Dalton?
200
Technology
What is the application of science to make products or tools that people can use.
200
The columns of the periodic table are called...
What are groups?
200
The number of neutrons and protons.
What is the atomic mass?
300
A neutral part of the atom.
What is a neutron?
300
The Cathode-ray.
Who is William Crooks?
300
A prediction.
What is a hypothesis?
300
periods
What are the rows of the periodic table?
300
Atoms that have the same number of protons but different numbers of electrons.
What is an isotope?
400
The charge of a proton.
What is a positive charge?
400
J.J. Thomson discovered this.
What is negatively charged particles, electrons?
400
The factor in the experiment that is changed.
What is an independent variable?
400
He arranged the elements on the periodic table according to their atomic mass.
Who was Dmitri Mendeleev?
400
Synthetic Elements
What is elements made in the laboratory?
500
A model that explains the unpredictable wave behavior of electrons.
What is an electron cloud?
500
He discovered positively charged particles in the center of the atom.
Who is Ernest Rutherford?
500
Constants
What are variables that stay the same?
500
Groups 3 to 12.
What are transition elements?
500
This technique is used to determine the age of artifacts and fossils.
What is carbon-14 dating?
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