atoms and molecules
Atoms are the basic __________________ _________________ of all matter.
. Atoms are the basic BUILDING BLOCKS of all matter.
What number is Krypton on the periodic table?
36
What number is Carbon on the periodic table?
6
What number is Oxygen on the periodic table?
8
_________ elements occur naturally.
92 elements occur naturally.
All matter is made of ___________________ and ______________________
All matter is made of ATOMS and MOLECULES
When atoms combine, they can make ___________________________
All matter is made of ATOMS and MOLECULES
________________ is in every living thing, like us. __________________ chemistry is the study of this element's compounds.
CARBON is in every living thing, like us. ORGANIC chemistry is the study of this element's compounds.
Electrons __________ each other and move around so fast that the atom acts like a ______________.
Electrons REPEL each other and move around so fast that the atom acts like a SOLID.
Everything in the universe is either _______________ or _______________. The smallest pieces of matter are ____________________.
Everything in the universe is either ENERGY or MATTER. The smallest pieces of matter are ATOMS.
Inside protons and neutrons are ______________. These are studies by a ____________ ____________________
Inside protons and neutrons are QUARKS. These are studies by a NUCLEUR PHYSICIST
NaCl is _________, C3 H5N3O9 is nitro-glycerine used to make ____________________.
NaCl is SALT, C3H5N3O9 is nitro-glycerine used to make DYNOMITE.
__________________________ atoms would fit on the head of a pin.
ONE MILLION atoms would fit on the head of a pin.
__________________ and _________________ are found in the nucleus. Their charges are ______________ and ___________________, respectfully. _________________ buzz around the nucleus at a ________________ distance away.
PROTONS and NEUTRONS are found in the nucleus. Their charges are POSITIVE and NEUTRAL, respectfully. ELECTRONS buzz around the nucleus at a HUGE distance away.
Things are made up of _____________ pieces of stuff.
TINY
The heavy particles of the atom are in the ___________________. The ______________ particles are on the outside. Atoms are mostly ________________ ______________.
The heavy particles of the atom are in the MIDDLE / NUCLEUS. The LIGHT particles are on the outside. Atoms are mostly EMPTY SPACE
The number of ________________ in the nucleus makes the atoms different. Elements have been arranged on a _____________ _____________. The _____________ number represents the number of protons.
The number of PROTONS in the nucleus makes the atoms different. Elements have been arranged on a PERIODIC TABLE. The ATOMIC number represents the number of protons.
To "see" the spaces in matter, add one cup of water and one cup of _______________. The total volume is _____________ ___________ two cups, since alcohol has a lot of _______________ ______________ between molecules, where water molecules can ___________
To "see" the spaces in matter, add one cup of water and one cup of ALCOHOL. The total volume is LESS THAN two cups, since alcohol has a lot of EMPTY SPACE between molecules, where water molecules can FILL
"Atoms" is from a Greek word meaning ______________________.
UNCUTABLE
Water is _____ parts ________________ and ____ part __________________. We know this because water can be split apart by ____________________
Water is TWO parts HYDROGEN and ONE part OXYGEN. We know this because water can be split apart by ELECTROLYSIS