The basic building blocks of matter
What is an atom?
Positively charged subatomic particles found in the nucleus
What are protons?
The number of protons in hydrogen atoms
What is 1?
Two or more atoms joined together chemically
What is a molecule?
A chemical bond formed when one or more electrons are transferred from one atom to another
What is an ionic bond?
Anything that has mass and takes up space
What is matter?
Negatively charged subatomic particles found orbiting the nucleus
What are electrons?
The number of protons in oxygen atoms
What is 8?
A molecule that contains atoms of at least two different elements
What is a compound?
A positively and negatively charged atom (or group of atoms) resulting from the transfer of electrons
What is an ion?
The number of protons in an atom and is unique to each type of atom
What is the atomic number?
Subatomic particles with no charge found in the nucleus
What are neutrons?
The number of protons in carbon atoms
What is 6?
The level of energy of electrons closest to the nucleus
What is the lowest?
A chemical bond formed by sharing electrons between two or more atoms
What is a covalent bond?
Collections of atoms that all have the same number of protons
What are elements?
A display of the symbols of all known elements
What is the periodic table?
How an atom and its isotopes are named
What is the element name followed by the atomic mass?
The number of electrons held at the first energy level
What is 2?
A weak electrical attraction between a partially positive hydrogen atom and a partially negative atom of another molecule (usually oxygen or nitrogen)
What is a hydrogen bond?
Determined by adding the protons and the neutrons
What is the atomic mass?
Elements that have the same number of protons, but different numbers of neutrons
What are isotopes?
Since isotopes have the same number of protons and electrons, all isotopes of an element have the same this:
What are chemical properties?
The atom that is unstable and reacts with other atoms (between hydrogen and helium)
What is hydrogen? (because it only has one electron in the lowest energy level)
A compound in which there is an unequal distribution of the negatively charged electrons causing a partial positive charge at one end and a partial negative charge at the other
What is a polar compound?