Experience 1
Anything that has mass and occupies space.
What is matter?
A positively charged subatomic particle.
What is a proton?
The pattern formed when light emitted by an element is separated into the different wavelengths it contains.
Names of the two models we have used to represent atoms.
What is Bohr Model and Quantum Mechanical Model?
List the number of electrons each subshell can hold.
What is:
s - 2
p - 6
d - 10
f - 14
The simplest form of matter that has a characteristic set of properties.
What is an element?
Same as the number of protons in an element. Also how we find an element on the periodic table.
What is the atomic number?
The fixed energies an electron can have /Place(s) where we find electrons outside of the nucleus.
What are energy levels?
Names of the subshells
What is s, p, d and f?
The ways in which electrons are arranged in various orbitals around the nuclei of atoms (in other words the address of the element)
What is electron configuration?
When two or more atoms combine and are held together by one or more chemical bond
What is a molecule?
What is the mass number?
The lowest possible energy level
What is the ground state?
Each subshell contains a certain number of these.
What are atomic orbitals?
Electrons in the outermost energy shell.
What are valence electrons?
A system and surroundings together make up the ____________
Universe
Atoms that have the same number of protons but different numbers of neutrons
What are isotopes?
The amount of energy required to move an electron from one energy level to another
Quantum of energy
1. What is the formula used to calculate the number of electrons that fit on each energy level?
2. What is the maximum number of electrons the 4th energy level could hold?
1. What is 2n2?
2. What are 32 electrons?
Write the full and noble gas electron configuration for Cd (Atomic number = 48)
Full configuration:
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10
Noble gas shortcut:
[Kr]4d105s2
Energy stored in the chemical bonds that hold atoms together (it can be released or absorbed during a chemical process)
What is Chemical Potential Energy?
Given the following, how could we approximate the atomic mass of Nickel?
58Ni 68.0769%
60Ni 26.2231%
61Ni 1.1399%
62Ni 3.6345%
64Ni 0.9256%
The atomic mass for Nickel would be closest to the isotope with the greatest percent abundance, which is 58Ni.
Energy is released when an electron moves from the ____________ state to the ______________state
what is the excited state and the ground state
List the first 8 subshells in order of increasing energy.
What is 1s 2s 2p 3s 3p 4s 3d 4p?
1. The shape of the s orbital
2. The shape of the p orbital
3. An element that is in the p block has an electronic configuration that ends with ____
1. what is a sphere
2. what is dumbbell shape
3. what is p