Home
Flashcards
Preview
Fall Sem Chem Final Pt.2
Home
Get App
Take Quiz
Create
Automatically remove your image background. Try it now!
https://remove-image-background.com
___________ is an atom's principal quantum number
n
Photoelectric effect depends on ___________
the energy of photon (frequency)
Principal energy levels of an atom are _________
n - 1,2,3
Aufbau principle states?
electron configuration?
Relationship that shows periodic pattern when elements are arranged by increasing atomic number is ____________
periodic trends
Elements were arranged in order of increasing atomic mass by
Periods are
horizontal
There are ___ periods
7
Group 1A are the
Alkali metals
Group 2A are the
Alkaline earth metals
Group 7A are the
Halogens
Group 8A are the
Noble gases
Electrons responsible for atom's behavior are ________ e-
valence
Moving down a group, atomic radius _________
increases
Electronegativity is __________________
tendency of an attracting electrons
_______________ discovered law of conservation of matter
lavosier
A substance that cannot be separated into simpler substances is a(n) ________
Mixture
A ______________ contains 2 or more elements combined in a fixed proportion
compound
______ ______ consists of one or more letters.
chemical symbol
___________ is simply a change of state.
burning
Density is an example of a ________________property
physical
Ionization energy is energy __________________________________
required to remove one of the atoms e-
Most reactive elements are found in the ___ block
S
Alkali metals form _____ charged ions
+
All alkali metals
lithium, sodium, potassium
A mixture of metals is an
alloy
____________ energy is carried out by objects in motion.
kinetic
A calorie is
energy burned up
Law of conservation of energy states
energy is neither created nor destroyed
Volume is measured with a
graduated cylinder
24.5 has __ significant digits
3
0.24 has __ significant digits
2
Chemistry is the study of
all substances and the changes they undergo
Density is
mass of unit by volume
X-axis is the ___________ variable and the Y-axis is the ___________ variable
independent, dependent
Atom is
smallest part of an element it retains
Automatically remove your image background. Try it now!
https://remove-image-background.com
Author
gerardcb
ID
59733
Card Set
Fall Sem Chem Final Pt.2
Description
chemistry
Updated
2011-01-14T06:10:49Z
Show Answers
Home
Flashcards
Preview