Question | Answer |
Neutron | Particle same as proton but no electric charge in them. |
Compound | Made from two different atoms |
Covalent Compound | Compound Two Non-Metals |
Ionic compound | Metal and a Non-Metal |
Molecule | Two or more atoms combined |
Halogens | Combine easily and really reactive non-metals |
Noble Gases | any of the gaseous elements helium, neon, argon, krypton, xenon, and radon, |
Density | Measurement of the mass |
Ductile | Can be drawn to a thin wire |
Malleable | Smashed without Crumbling |
Corrosive | To destroy a metal |
Luster | Shiny |
Atom | Particle that is made out of mostly everything. |
Element | When something is made up of one kind of atom. |
Proton | Has a positive charge |
Electron | Has a negative charge |
Matter | everything is made of |
Chemical properties of metals | corrode easy (rust), some very reactive |
Physical properties of metals | luster, good conductor of heat & electricity, high density, high melting point, ductile, used for electrical wiring |
What are most abundant element(how many are there) | Metals 88 |
Group | Groups go Up/Down: indicate electrons in last shell |
Period | Go across: indicate number of electron shells |
Chemical property | a characteristic of a substance where it can undergo a chemical reaction and become something new |
Physical property | a characteristic of a substance that does not change |
Atomic mass - atomic number = | # of neutrons |
Atomic number = # of | electrons or protons |
Atomic number = # of | protons or electrons |
Atomic structure | Details about each element's ___________ _______ can be found from periodic table |
The Periodic Table of Elements | elements are organized into the ________ _____ |
Electron | Has small particles, negative charge, found outside of the nucleus, move quickly around outside of nucleus |
Proton | Made of large particles, have positive charge, found in nucleus |
Neutron | Made of large particles, has no charge (neutral) found in the nucleus of an atom |
3 subatomic particles of an atom | proton, electron, neutron |
How are matter, element and atom related | All matter is made of elements, which are made of atoms! |
An ____ is the smallest part of an element keeping all its properties | atom |
An ______ is matter made of only one type of atom | element |
physical properties of non metals | dull, good insulator, poor conductor, brittle (breaks easy), low density |