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100
Oxygen and carbon
What is 2 most common elements in the human body
100
the rows on a periodic table are called
What is period
100
adding or losing electrons in an atom
What is an ion
100
what is the charge of an electron
What is negative
200
The nucleus of an atom contains
What is protons and neutrons
200
the columns on a periodic table are called
What is group
200
adding electrons produces this kind of ion
What is negative ion
200
the three regions on a periodic table
What is metals, nonmetals, metalliods
300
electrons location
What is the electron cloud or outside the nucleus
300
how are elements arranged in the periodic table
What is by increasing atomic number
300
losing an electron produces this type of ion
What is positive ion
300
Most elements are?
What is metals
400
the number of protons in an atom
What is the atomic number
400
the most reactive group on the periodic table
What is group 1
400
what is the charge of an electron
What is negative
400
some elements can change their identity through this
What is radioactive decay?
500
the mass of protons and neutrons located in the nucleus
What is atomic mass
500
the side of the periodic table with the least reactive elements
What is right
500
what is the charge of a neutron
What is neutral
500
come up to the board and construct a diagram of an atom
What is nucleus with protons and neutrons and electron cloud with electrons