Which one is a metal?
A- Sulfur
B- Oxygen
C-Potassium
D- Krypton
C-Potassium
100
Covalent bonding is a chemical bonding between what two things?
A)metal and nonmetal
B)metal and metal
C)non metal and non metal
D)element
C) non metal and non metal
100
What is an atom? What are atoms made of?
- Atoms are the basic building blocks of ordinary matter.
- Atoms can join together to form molecules.
- Atoms are made of particles called protons, electrons and neutrons.
100
What does a period tell you?
What does a group tell you?
A period tells you the number of shells the element has.
A group tells you the number of valence electrons in the outer shell.
100
How many elements are in the Periodic Table?
118 elements are in the Periodic Table
200
Do metals have Cations or Anions?
Do non-metals have Cations or Anions?
All metals are positive so they have Cations. Cations are positively charged molecules or atoms.
Non-metals have a negative charge so they have Anions.
200
In ionic bonding electrons are given up and received. What happens in covalent bonding?
electrons are shared
200
What are IONIC BONDS?
An IONIC BOND is a connection formed between oppositely charged ions in a chemical compound, this is because of the electrostatic attraction between them.
200
How many periods are there in the periodic table?
How many groups are there in the periodic table?
There are 7 periods
There are 18 groups
200
What does S.N.F. stand for?
Strong Nuclear Force
300
State one characteristic for both a metal and a non-metal.
Metal- malleable, ductile, solid, high density, low ionization, good conductors.
Non-metals- Gasses, good insulator, non ductile and malleable, low density and characteristic color.
300
What is the written formula of the ionic bonding of sodium and chlorine?
NaCl
300
What is a(n)...
- atom?
- ion?
- compound?
- An ATOM is the basic unit of an element
- An ION is an atom or molecule with an electric charge due to the loss or gain of one or more electrons.
- A COMPOUND is anything that is composed of two or more elements.
300
How are elements organized in the periodic table?
They are organized by their properties, and their atomic #.
300
Who discovered protons, electrons, and neutrons, and in what year?
Protons - Rutherford in 1919
Electrons - J.J. Thompson in 1897
Neutrons - Chadwicke in 1932
400
Which block in the Periodic table are metals and non-metals located?
Non-metals are located in the "P" block.
Metals are located in ALL of the blocks.
400
What is the structure used to show covalent bonding?
Lewis structure
400
Is CHLORINE a...
a) compound'
b) element
c) a mixture of compounds
CHLORINE is a COMPOUND.
400
Who invented the periodic table?
Mendeleev
400
What is the color of liquid oxygen?
Blue
500
Which metal will you mostly find on the Earths crust?
Aluminum
500
In writing covalent bonding formulas what is four?
Tetra=4
500
What determines the chemical behavior of an atom?
The number of protons determines the chemical behavior of an atom.
500
What are groups and periods broken into?
Groups and periods broken into...
-metals/non-metals
-solid/liquid/gas
-naturals/synthetic (man-made)
500
What is the only letter not used in the Periodic Table?