periodic table
how many elements in the periodic table?
118
i have a negative charge
electron
property of metallic elements?
conducts heat and electricity, malleable, ductile
the inner part of an atom that contains the proton and neutron.
Nucleus
what is matter?
anything that occupies space and has mass
what information is on one singular element tile of the periodic table?
atomic number, element symbol, element name, and atomic mass
I am the number of protons contained inside an atom of an element.
atomic number
properties of non-metallic element
brittle, dull
these particles have a positive charge and are inside the nucleus.
Proton
made out of atoms (which contain protons, electrons and neutrons.)
number of periods in the periodic table
7
Atoms with the same number of protons, but a different number of neutrons
isotopes
noble gases are located where on the periodic table?
the last group
two particles that are always found in the same number
protons and electrons
usually composed of two or more nonmetal elements
molecular compound
there are 18 of these in the periodic table
groups/families
I am composed of two or more separate elements
compound
the most common element in our body is?
oxygen (O)
maximum number of electrons that can fit on the first three shells of an atom ?
any substance composed of identical molecules consisting of atoms of two or more chemical elements
chemical compound
who developed the first periodic table of elements, arranging them in order of increasing atomic mass?
Dmitri Mandeleev
I am a symbolic representation of a chemical reaction
chemical equation
Helium, argon, neon, xenon, krypton and radon are ?
the 6 noble gases
how do you find the number of neutrons in an atom
subtract the atomic number from the atomic mass
type of chemical bonding that involves the electrostatic attraction between oppositely charged ions, or between two atoms with sharply different electronegativities.
ionic bonding