CSET Multiple Subject Subtest 2 Exam Questions and Answers 100% Correct Graded A+
2026/27
density - The amount of "stuff" you have in a certain amount of space.
Dens=mass/volume
Conservation of matter - Matter cannot be destroyed. I.e. the ash and the gas left from log
being burned really adds up to the original mass of the log
element - Substance that can't be separated into simpler substances by chemical means
atom - Smallest unit of an element that still has properties of that element. An atom has a
proton, neutron, and electron
proton - -positive
-located in nucleus
-mass is 1 atomic mass unit (AMU)
neutron - -neutral
-located in nucleus
-mass is 1 AMU
electron - -negative
-orbits outside nucleus
, -mass is 1/1836th AMU (extremely small)
Balanced atom - Has the same number of protons and electrons
Imbalanced charge/Ion - Called an ion. It is positive or negative because of more or less
electrons than protons. A way to remember this is that "ion" is a small word and electrons are a
small particle
isotope - An atom with a different number of neutrons
Atomic mass - The amount of matter that makes up an atom. Found by adding up the
number of protons and neutrons
Atomic number - Number of protons that the atom has
Half life - The time it takes for half the atom to disintegrate. C14 (carbon 14) can be used
to date organisms that died less than 50,000 years ago
Periodic table - -atomic number and mass increase as you move left to right and top to
bottom
-chemical properties are organized by column--that go up and down
Compound - Substance composed of two or more elements. I.e. h2o co2, and NaCl
2026/27
density - The amount of "stuff" you have in a certain amount of space.
Dens=mass/volume
Conservation of matter - Matter cannot be destroyed. I.e. the ash and the gas left from log
being burned really adds up to the original mass of the log
element - Substance that can't be separated into simpler substances by chemical means
atom - Smallest unit of an element that still has properties of that element. An atom has a
proton, neutron, and electron
proton - -positive
-located in nucleus
-mass is 1 atomic mass unit (AMU)
neutron - -neutral
-located in nucleus
-mass is 1 AMU
electron - -negative
-orbits outside nucleus
, -mass is 1/1836th AMU (extremely small)
Balanced atom - Has the same number of protons and electrons
Imbalanced charge/Ion - Called an ion. It is positive or negative because of more or less
electrons than protons. A way to remember this is that "ion" is a small word and electrons are a
small particle
isotope - An atom with a different number of neutrons
Atomic mass - The amount of matter that makes up an atom. Found by adding up the
number of protons and neutrons
Atomic number - Number of protons that the atom has
Half life - The time it takes for half the atom to disintegrate. C14 (carbon 14) can be used
to date organisms that died less than 50,000 years ago
Periodic table - -atomic number and mass increase as you move left to right and top to
bottom
-chemical properties are organized by column--that go up and down
Compound - Substance composed of two or more elements. I.e. h2o co2, and NaCl
