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What is the chemistry term for anything that occupies space and has weight?
matter
What is a fundamental substance that cannot be broken down into a simpler form by ordinary chemical means?
element
What is the smallest unit of an element that has that element's characteristics?
atom
What are the 3 parts of an atom?
proton, neutron, electron
Which 2 parts of an atom are located within the nucleus?
proton, neutron
What part of an atom carries a positive charge and is located inside the nucleus?
proton
What part of an atom does not carry any electrical charge?
neutron
What part of an atom carries a negative charge and is located outside the nucleus?
electron
An element with an atomic number of 6 has _____ protons and _____ electrons
6 protons and 6 electrons
An element has an atomic weight of 23 and an atomic number of 12. How many neutrons does it have?
11
True or False: in each atom the number of protons is equal to the number of electrons
True
Which part of an atom is responsible for interacting with other atoms?
electron
What is the chemical term for a different form of the same element (same atomic # but a diff. atomic weight); an example is "heavy hydrogen"
isotope
What type of bond is formed when electrons are shared by atoms?
covalent bond
What type of very weak bond forms between water molecules?
hydrogen bond
What type of bond is formed when one atom donates an electron to another atom?
ionic bond
