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100
what elements atomic number is 26
iron
100
the small, positively charged center of the atom
the nucleus
100
the smallest piece of matter that still has the properties of the element
an atom
100
what element is this
carbon
100
an arrangement of the elements by increasing atomic number and by changes in physical and chemical properties.
periodic table
200
particle with an electrical charge of 1-
electron
200
whats the definition of an element
a basic part of a whole
200
a number equal to the number of protons in an atom
atomic number
200
What is the atomic number
2
200
Na on the periodic table
sodium
300
particle with no charge
neutron
300
how does static electricity work
the result of an imbalance between negative and positive charges in an object
300
What is the atomic weight
107.87
300
what elements atomic number is 27
cobalt
300
These two particles make up the net charge of an atom
protons and electrons
400
particle with an electrical charge of 1+
proton
400
What is a molecule, and how would you recognize one
A molecule is two or more atoms connected by chemical bonds, which form the smallest unit of a substance that retains the composition and properties of that substance.
400
what is a molecule
a group of two or more atoms that form the smallest identifiable unit
400
This particle is shown on the rings of the Bohr diagram
electrons
400
if the atomic number is 6, how many protons does it have?
6
500
the area around the nucleus of an atom where its electrons are most likely found
electron cloud
500
if the atomic number is 11, how many electrons does it have
11
500
the sum of the number of protons and the number of neutrons in an atom
the mass number
500
how does static electricity work
Static electricity is the result of an imbalance between negative and positive charges in an object.
500
what elements number is 71
lutetium