Atoms: All the little bits
When atoms GAIN electrons, their charge becomes this.
Negative.
When an atom gains or loses an electron and is no longer neutral, it becomes this
An ion.
The name given to the horizontal rows on the periodic table.
Period.
The sum of the protons and neutrons tell us this.
Atomic Mass
A sodium atom (Na) that is has given away one electron is written like this:
What is Na+
Electrons that are closest to the nucleus are in the ___ energy level
What is first/ lowest?
These types of covalent bonds share electrons evenly.
This is the name of the one or two letters that represent an element on the periodic table
What is the symbol?
This is the part of the atom that we can't see upon examining the element's tile on the periodic table; instead, we have to calculate it with subtraction
What is the number of neutrons? (calculated by subtracting # of protons from atomic #)
A molecule of carbon dioxide, CO2, has this many atoms. Carbon is atomic number 6, Oxygen is atomic number 8.
What are 3 atoms: 1 carbon, 2 oxygen
This is the name of the way of showing the electrons in the outermost energy level of an atom around the symbol of the element
What is the electron dot diagram?
A bond between atoms that share their outermost electrons. They form between two or more nonmetals.
What is a Covalent Bond.
The name of the VERTICAL columns of elements on the periodic table.
What is the Group/Family
Group 1 on the periodic table, known as the Alkali metals, have this many electrons in their outermost energy level
What is 1?
This is the name of the model that shows the TOTAL number of electrons of an atom
What is the Bohr model?
In an atom, this is where the electrons can be found
Where is the electron cloud?
A bond between atoms, in which electrons are given away or taken. They form between a nonmetal and a metal
Ionic Bond.
This is the name of Group 18 on the periodic table, including elements such as Neon, Argon, and Helium.
They have ____ electrons in their outermost energy level
What are the noble gases?
What is 8?
This number tells us both the number of protons and electrons in an electrically neutral atom
What is the Atomic Number.
Draw the Bohr model of an atom of Oxygen, atomic number 8 on the periodic table
Model should include two energy levels, with first containing 2 electrons, second containing 6 electrons (pair on top, pair to side, one below and one on the other side)
Name the three subatomic particles that make up the nucleus, and their relative atomic weights:
1. ______ is ______
2. ______ is ______
3. ______ is ______
What are :
protons are heavy
neutrons are heavy
electrons are not heavy/ weigh almost nothing
These types of bonds do NOT share electrons evenly.
Polar Covalent bonds.
This is the name of the scientist that pieced together the periodic table in 1869
Who is Dmitri Mendeleev?
This is the name of Group 17 on the periodic table, including elements such as Chlorine, Fluorine, and Iodine
They have ___ electrons in their outermost energy level
What are the Halogens?
What are 7 electrons?
The electron dot diagram for magnesium, Mg, that gave away two electrons would look like this:
What is [ Mg ] 2+