Introduction to atoms
Organizing the elements
Metals
Nonmetals and metaloids
Radioactive elements
100
The smallest particle of an element.
What is an atom?
100
It is the average mass of all the isotopes of an element.
What is the atomic number?
100
They are shininess, malleability, ductility, and conductivity.
What are the physical properties of metal?
100
It is an element that doesn't have most of the properties of a metal.
What is a nonmetal?
100
The name given to spontaneous emission.
What is radioactivity?
200
They are the negatively charged particles .
What are electrons?
200
Mendeleev.
Who published the first periodic table?
200
It is the ability of an object to transfer heat or electricity to another item.
What is conductivity?
200
It consist f 2 atoms.
What is a diatomic molecule?
200
The atomic nuclei of unstable isotopes release fast moving energy and particles.
What is radio active decay?
300
The center of an atom.
What is a nucleus ?
300
It is a process that occurs in stars on a large scale. It combines the smaller nuclei into bigger neuclei,creating heavier elements.
What is nuclear fusion?
300
It is the speed and ease with which an element combines or reacts with other elements.
What is reactivity?
300
They are substances that can conduct electricity under some conditions but not under others.
What are semiconductors?
300
It has 2 protons and 2 neutrons and its positively charged.
What does an alpha particle consist of?
400
Yes.
Does the number of protons equal the number of electrons?
400
They are horizontal rows on the periodic table.
What are periods on the periodic table?
400
It is the destruction of metal.
What is corrosion?
400
Their varying ability to conduct electricity.
What is the most useful property of metalloids?
400
Its a fast moving electron given off by a nucleus given off during radioactive decay.
What is a beta particle.
500
It is an atom with the same number of protons and neutrons.
What is an isotope?
500
In each square there is the element's atomic number, chemical symbol,name, and atomic mass.
What is in each square on the periodic table?
500
They are made when nuclear particles are forced to crash into one another.
How are synthetic elements made?
500
They are elements between metals and nonmetals.
What are metalloids?
500
It consists of high energy waves.
What does gamma radiation consist of?
M
e
n
u