Atoms
Periodic Table
Models/Notation
Misc.
Misc.
100
What are the charges and names of the three sub atomic particles in an atom?
proton is positive, neutron is neutral, and electron is negative
100
Elements on the periodic table are arranged by what?
Atomic Number
100
Name one type of model that contributed to the atomic theory timeline.
Bohr model, Solid sphere model, Plum pudding model, Proton model, Nuclear model, or Electron cloud model
100
What are the two main forces that hold an atom together?
electromagnetic force & strong nuclear force
100
What is your favorite class with your favorite teacher?
Chemistry with Ms. Fettkether
200
What are the two main parts of an atom?
nucleus and electron cloud
200
Which direction are groups on the periodic table and what do group numbers tell you about an element?
up and down & how many valence electrons it has
200
What is atomic theory?
The idea that matter is made up of fundamental particles called atoms
200
Quarks make up which two subatomic particles?
protons and neutrons
200
What is a charged atom called?
ion
300
This subatomic particle tells you the identity of the element.
Proton
300
Which direction are periods on the periodic table and what does the period number tell you about an element?
left and right rows & number of shells or energy levels in its electron cloud
300
Name the two types of isotope notation we discussed in class.
hyphen form and nuclear form
300
The force between the nucleus and the electron cloud is _________. The force between the electrons in the electron cloud is _________.
attractive, repulsive
300
How do you find the mass #? (think isotope tables)
# of protons + # of neutrons
400
Each subatomic particle contributes to the atom in a certain way. Which subatomic particle matched with the following characteristics? (Identity, Mass, Bonding Behavior)
Protons = identity, neutrons = mass, electrons = bonding behavior
400
How many electrons do the first three energy levels hold at most?
Level 1 holds 2 electrons, Level 2 holds 8 electrons, Level 3 holds 18 electrons at most
400
Draw the Bohr model for Boron.
400
How are isotopes determined? (or why do they exist?)
They are atoms of an element that differ in neutrons.
400
What element is unlike it's counterparts in grouping? Give one example.
Hydrogen: Its properties that make it fit into both Group 1 (alkali metals) and Group 17 (halogens). It also stands at the border of metals and non-metals (but it doesn't behave like a metal)
500
What is a valence electron?
electrons in the outermost electron shell of an atom, electrons furthest from a nucleus, decides chemical properties and bonding behaviors
500
Why is the atomic mass listed on the periodic table for a specific element not a whole number?
The atomic mass is the weighted average of all different versions of an element (isotopes). Its closest to the most common type of isotope of that element.
500
Write the hyphen form and nuclear form for potassium with a mass number of 40.
500
Categorize the following elements as metals, nonmetals, or metalloids. (He, H, Zn, K, As, Cl)
Metal: Zn, K
Nonmetal: He, H, Cl
Metalloid: As
500
The element B has two naturally occurring isotopes with atomic masses of 11.01 and 10.01. Based on the information a periodic table gives you, which isotope do you think is the most abundant?
the isotope with the atomic mass of 11.01