A
How many types of atoms are in an element?
1 type of atom
How many types of atoms are compounds made up of?
2 OR MORE
What charge do protons carry and what charge do electrons carry?
Protons: positive
Electrons: negative
Particles are still close together, but are not locked in a rigid pattern. They have enough energy to slide past each other: What state of matter is this referring to?
Liquid
What type of atoms are in the element Oxygen?
oxygen atoms
How many Carbon atoms do I have in this chemical formula? C3H6O12
3
What does the number of protons and number of neutrons tell us about an element?
The atomic mass
True or False: The periodic table contains compounds and elements that have atomic numbers and atomic masses
I have an unknown element... It has 5 protons and 5 electrons. What is the unknown element?
Carbon
What is the chemical formula for a compound that contains 4 carbon atoms, 1 hydrogen atom, and 2 oxygen atoms?
C4HO2
What is the overall charge of an element that has 10 protons and 12 electrons?
-2
What do we call a group of atoms
Molecules
contains only one type of particle- whether that particle is a single atom or bonded atoms
pure substances
How many total atoms are in one molecule of C3H2O2
7
What is the reason atoms attract each other?
they contain positively charged protons and negatively charged electrons: opposites attract
A factor in an experiment that I measure or observe
Dependent variable
Element X has 12 protons, 15 neutrons, 12 electrons. What is the atomic mass of Element X
27
Methane is a pure substance and exists as a gas at room temperature. Each methane molecule is made up of one carbon atom chemically bonded to four hydrogen atoms. How is methane classified?
A. Element B. Compound Homogenous Mixture D. Heterogenous mixture
Compound
I have element X with an Atomic mass of 25. It has 10 protons. How many neutrons does element X contain?
15
when a person feels different because they were told they received treatment, despite not receiving treatment
Placebo Effect