Types of Matter
The smallest unit of matter that retains chemical properties.
Atoms
The horizontal rows on there periodic table
Period
Isotopes are atoms of the same element with different what?
Mass numbers
An ion is an atom with a
Formal Charge
How do you calculate/find the mass number of an isotope?
Protons + Neutrons
Solution
Group 8 Period 4
(full name)
Iron (Fe)
In two different isotopes of the same element, what subatomic particle has to remain constant?
Protons
What causes an ion to have a charge?
Unequal amounts of protons and electrons.
How do you find the charge of an ion?
Difference in protons and electrons (protons - electrons)
This unit of matter can be both a compound and an element depending on its chemical makeup.
Molecule
What family on the periodic table wants to lose two valence electrons to complete its octet?
Alkaline Earth Metals
In the isotope Calcium-41 (with no charge), what subatomic particle is most numerous?
Neutrons
What subatomic particle is responsive for turning a neutral atom into an ion?
Electrons (gained or lost)
How many protons are in a sample of Sulfur-33 if the sample contains 3x1011 atoms? Answer using scientific notation.
4.8x1012 protons
Tap water should be classified as what type of matter?
Homogenous Mixture (Solution)
What are the most reactive metal and nonmetal?
Francium & Fluorine
How many neutrons does the isotope 121Sn have?
71 neutrons
If an ion of phosphorous-32 has a charge of -3, how many electrons does it have?
18
Chlorine has 2 naturally occurring isotopes: Chlorine-35 (74%) and Chlorine-37 (26%). Using this data, what is the atomic mass of chlorine?
35.52 amu
What is an example of a molecular element?
O2 N2 H2 Cl2 F2 Br2 I2
Boron is classified as what type of element?
Metalloid
What is the nuclear notation for a neutral atom of Tungsten that has 41 more neutrons than protons?
189W
What is the nuclear notation for an ion that has 78 protons, 120 neutrons, and 76 electrons?
198Pt+2
In a a sample of silicon there are 245 atoms of 28Si, 32 atoms of 29Si, and 27 atoms of 30Si. What is the atomic mass of silicon given the data from this sample?
28.28 amu