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33 Cards in this Set

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  • Back
What is an isotope?
An isotope is an atom of the same element with a different number of Neutrons.
What is an ion?
An ion is an atom with a charge. It either has more electrons than protons or more protons than electrons.
Which tells you how many Energy shells an atom will have, the period number or the family number?
The period number.
Which tells you how many valence electrons an atom will have, the period number or the family number.
The family number.
What is the maximum number of valence electrons and atom can have?
How many electrons will the 3rd energy shell hold?
Up to 18 (unless it is the valence shell and then it will only hold 8)
Which 3 elements are magnetic?
Nickel, Cobalt and Iron
What are valence electrons?
The electrons in the outermost shell that are involved in sharing or transferring of electrons (bonding).
What are the elements called that live on the Zig Zag on the Periodic Table and why are they called that?
Metalloids. They are called that because it means "metal-like" and the metalloids have some properties of metals and some properties of non-metals.
Name a Metal that is liquid at room temperature.
What 4 pieces of information are found in each square on the Periodic Table?
Atomic Number, Chemical Symbol, Element Name, Atomic Mass
What is an AMU?
The AMU is the Atomic Mass Unit, which is roughly the mass of a Proton or a Neutron.
When determining the mass of an atom, which two particles are added together, which is left out and why is it left out?
The Proton and the Neutron are added together to find the mass of an atom. The electron is left out because its mass is so small (about 1/2000 the size of a proton) it is not counted.
What is the charge of a Proton?
Where is it found in the atom?
What is its mass?
Positive Charge
It is found inside the nucleus
It has a mass of roughly 1 amu
What is the charge of a neutron?
Where is it in the atom?
What is its mass?
Charge is neutral (no charge)
It is found in the nucleus
It has a mass of roughly 1 amu
What is the charge of an electron?
Where is it found in the atom?
What is its mass?
It has a negative charge.
It is found outside the nucleus in the energy shells or levels (or cloud)
It has a mass of about 1/1800 amu
What is the definition of Atomic Number?
The atomic number is the number of Protons in an atom.
What is the largest naturally occuring atom?
What does "Periodic" mean?
Periodic means having a repeating pattern.
What does "malleable" mean?
Malleable means able to be pounded into sheets - bendable. Ex. silly putty, playdough etc.
What does "ductile" mean?
Ductile means able to be pulled out into wires - think of taffy.
If gold is such a great conductor of electricity and does not react with a lot of things (does not corrode), why don't we use it for our power cords and household wiring?
It is too expensive.
What is a fascinating property of Sodium and other members of its family?
Sodium reacts violently with water.
Which two elements combine to form Table Salt?
Sodium (Na) and Chlorine (Cl)
What is the rule about Chemical Symbols?
The first letter is always capitolized and if there is a second letter it is always lower cased.
Who designed the first Periodic Table of the Elements?
Demetri Medeleev
Which sets of elements have similar properties, those in the same period or those in the same family.
Those in the same family
How many periods does the Periodic Table have?
Why are the Inert gases called "Inert"?
Inert means not reacting - Inert gases do not react with other elements.
Why are the Lanthanides and Actinides at the bottom of the Periodic Table?
If they were put into their proper rows, the Periodic Table would be too big.
Name 4 properties of Metals.
1. shiny
2. good conductors of heat and electricity
3. most are solids at room temperature
4. malleable
5. ductile
Why are Inert gases also called Noble gases?
Like the Nobles of Europe, the Noble gases do not associate with those that are unlike them (all the other elements)
What are the names of the first two families?
Alkali Metals, Alkaline Earth Metals