Atomic Structure
the building blocks of matter
What are atoms?
A group of atoms bonded together representing the smallest fundamental unit of a chemical compound
What is a molecule?
The element with only 1 proton
What is hydrogen?
Anything that has mass and takes up space
The positive particles at the nucleus of an atom
What are protons?
the chemical bond formed by the sharing of a pair of electrons
What is a covalent bond?
The number below the name of an element on the periodic table
What is atomic mass?
The basic unit of length in the metric system
What is a meter?
An atom is most stable when there are ___ electrons in its outermost orbital
Eight
Electrons involved in chemical bonding found in the outermost orbital
What are valence electrons?
Rows on the periodic table are called this
What are periods?
The boiling point of water (in Celcius)
100*C
The number of protons in the nucleus of an atom
What is atomic number?
A chemical bond formed by the transfer of electrons, usually between a metal and a nonmetal
What is a ionic bond?
The element with the symbol Ag
What is silver?
a possible explanation for a set of observations or answer to a scientific question
What is a hypothesis?
Atoms with the same number of protons but different numbers of neutrons
What are isotopes?
What are Noble Gases?
Elements along the zig zaggy line that have properties of both metals and nonmetals
What are the metalloids?
He made the first model of an atom
John Dalton