What's the Matter?
I'm the smallest particle of an element that retains the chemical properties of that element. What am I?
an ATOM
When we made ice cream in class, what did we use to lower the temperature of the milk and cream?
Rock salt
When you go down a group, does the atomic radius increase or decrease? (You can also look at it as the number of electron shells - do they increase or decrease?)
Increase!
I'm all through the air. Just take a deep breath...
Oxygen!
O
I am a substance made up of two or more different elements that are chemically joined in fixed proportions. What am I?
a COMPOUND
In the experiment "Can I transfer metal ions?"
What two things did we combine to create a solution for the pennies to soak in?
Vinegar and Salt
I'm the big chunk of elements on the periodic table between Group II and Group III. What am I called?
The Transition Metals
I'm a 10! (in terms of my atomic number) and you can use me to light up signs
Neon!
Ne
I am a number that indicates the number of protons in the nucleus. What am I?
The ATOMIC NUMBER
In the experiment "Is it a Metal?" which is the only test the aluminum foil failed?
the magnetism test
I was so smart - I figured out where undiscovered elements should be on the periodic table AND what their properties would be! Who am I?
Dimitri Mendeleev (still counts if you only remembered his last name)
I'm the element in your memory work that is "for your pretty teeth" and I have an atomic number of 9.
Fluorine!
Fl
All atoms want to be full and stable - that's why 8 is great! What am I called?
An OCTET
In the experiment with pennies and nails, we transferred the ions of what ELEMENT?
Copper
I am an organized line of elements in the periodic table with similar properties, electron configurations, and # of electrons in outer shells
(I won't say if I am horizontal or vertical - that would be too easy) What am I?
a GROUP - which is vertical (up and down)
I'm an Alakali Metal that goes Kaboom! in water and my symbol is the letter K.
Potassium!
K
Isotopes of the same element will have the same number of {which subatomic particles} but a different number of {which subatomic particle}
Same number of PROTONS and ELECTRONS
but a different number of NEUTRONS
In the "Is it a Metal?" experiment, the CD only passed the luster test. Why?
The CD is made of a type of plastic which is a non-metal so it failed the magnetism, malleability, and conductivity tests. But it has a thin layer of aluminum which is a poor metal on the outside so it passed the luster test.
If you are numbering the groups of the periodic table with regular digits, then you would say there are _____ number of groups.
But if you are numbering the groups of the periodic table with Roman Numerals, then you would only count up to _______.
18
VIII
As the most abundant element in the universe, I am unique! While at the top of the Alkali Metals Group on the periodic table, I am a gas at room temperature and have different properties.
Hydrogen!
H