Atoms
Definitions
Structure
chemicals
Extra
100
All matter is made up of....
Atoms
100
A substance made of only one kind of atom.
element
100
What does an atom consist of?
protons and electrons and neutrons
100
Which elements are liquid?
Gallium, Bromine, Mercury, Francium, Cesium, Rubidium
100
How are elements named?
Greek or latin orgin
200
atomic number is the number of.....
protons
200
An atom that has gained or lost one of its electrons
an Ion
300
Based on the wieght of one carbon atom
How can atomic mass be calculated?
300
describes its potential to undergo some chemical change to reaction
Chemical property
300
what is an electron shell?
A grouping of electrons surrounding the nucleus of an atom
300
Number placed in front of an element symbol or chemical formula
Coefficient
400
why do we use atomic mass?
to see aproxamitally the mass of the proton or nuetron
400
An electron in the outer shell of an atom.
Valance electrons
400
the characteristics that describe the composition of matter.
Chemical Properties
400
oxygen
What is the most common element?
400
metal
An element that conducts heat and electricity wall
500
53% water 11% hydrogen by mass 67% hydrogen
What elements are in the human body?
500
Symbols and subscript used to represent a substance.
Chemical Formula
500
Number of lower right of elements symbol in a formula
What is subscript
500
Symbols and subscript used to represent a substance
What is the chemical formula
M
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n
u