A compound contains at LEAST _____________ or more _____________ types of atoms.
What is two, different.
100
The periodic table is organized according to ____________ _____________.
What is atomic number.
100
The number of protons and electrons in an atom should NOT be equal. True or false?
What is FALSE! They should be equal for the overall atom to be neutral.
200
What is the smallest part of an element that retains the same properties of that element?
What is the ATOM.
200
Which of these is NOT a molecule? H3, Na, NaCl, OH
What is Na. It's an element.
200
Sugar is an example of a _____________.
What is a COMPOUND.
200
The periodic table is mostly ____________, which are good conductors of electricity and heat.
What is metals.
200
Rows or ________________ on the periodic table tell you the number of energy shells each atom has in that same row.
What is period.
300
A molecule of canola oil is: C3H5O6. How many atoms are present in the molecule?
What is 14 atoms.
300
If two oxygen atoms bond or combine, what is formed?
What is a molecule.
300
The chemical formula for rust is Fe2O3. Is it an element, compound or mixture?
What is a compound.
300
Which family on the periodic table is said to be "inert" or not likely to react with other elements?
What is the noble gases.
300
What is the maximum number of valence electrons ANY element can have?
What is 8.
400
You have two different sized samples of silver. What would both samples most likely have in common?
What is the same type of atoms.
400
List which ones are molecules: H2, OH, H20, H
What is H2, OH, H20
400
What type of mixture is:
A - Pizza
B - Kool-Aid
C - Cereal and Milk
What is heterogeneous, homogeneous, heterogeneous
400
If you are looking for an element that is most similar in chemical behavior to another element, you would look in the same....
What is family/group/column.
400
An _____________ is a chemical that cannot be separated into other chemicals, or simpler means.
What is an element.
500
An atom that has a different number of neutrons is called an _____________.
An atom that has a different number of electrons is called an _____________.
Explain how each of these changes alters the atom.
What is isotope (more/less mass), ion (charged atom/ pos or neg)
500
CH4. Is it a compound, molecule, or both. EXPLAIN.
What is both - all compounds MUST be molecules!
500
Mixtures combine _____________ while compounds combine _________________. Can you separate a mixture and a compound? Explain.
What is physically, chemically. Yes.
500
What group is helium in on the periodic table?
What is group 18.
500
Lead has an atomic number of 82 and an atomic mass of 207.2 amu. How many neutrons, protons and electrons does Lead have normally?