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6-Elements/Compounds
6th - Atoms, Elements & Compounds
Question | Answer |
---|---|
number of protons in an atom | atomic number |
part of the atom with a positive charge | proton |
part of the atom with a negative charge | electron |
center of an atom that is surrounded by a cloud of electrons | nucleus |
smallest unit of matter that everything is made of | atom |
part of the atom with a neutral charge | neutron |
number of protons and neutrons in an atom | atomic mass |
A substance made of all the same type of atoms | element |
a substance made of more than one type of atoms | compound |
Are elements or compounds found on the periodic table? | elements only |
Which two parts of the atom weigh the most? | protons and neutrons |
Which one part of the atom weighs the least? | electrons |
These atoms have the same number of protons, but different numbers of neutrons | isotopes |
atoms that have an electric charge because they have a different number of protons and electrons | ions |
Are metals or nonmetals found to the right side of the zigzag line on the periodic table? | nonmetals |
Are metals or nonmetals found to the left side of the zigzag line on the periodic table? | metals |
In the periodic table, elements are arranged in __________ according to their atomic number. | periods |
Is the current periodic table the only way of organizing elements? | NO |