STRUCTURE OF MATTER I TEST REVIEW
ATOMS
All matter is made up of small particles called _______________
WEAK
Compared to a solid, the molecular bonds of a liquid are __________________
5
Count the total number of atoms in CH4
5
Count the total number of atoms in CaCO3
3
Count the total number of atoms in H2O
4
Count the total number of atoms in NH3
2
Count the total number of atoms in NaCI
3
Count the total number of atoms in SiO2
WATER
H2O
CARBON: 1 OXYGEN: 2
List the number of atoms for each element in CO2
ELEMENTS
N2, O2 and Cu are __________________
1 g/cm3
One mL of water would have a density of ____________g/cm3
0.22
The cube has a mass of 3,300 g What is its density?
CORK
The cube has a mass of 3,300 g What substance is it?
23
What is the atomic mass?
11
What is the atomic number
LIQUID
a form of matter that has a definite volume but no definite shape is a __________________
OXYGEN HYDROGEN
a molecule of water is made from the bonding of one _______________ atom and 2 ____________ atoms
MIXTURE
a substance which contains various elements or compounds without bonding or in fixed proportions is a __________________--
MASS
amount of matter in an object
THE NUMBER OF PROTONS IS EQUAL TO THE NUMBER OF ELECTRONS
an atom has no electrical charge because _______________
INERT
an element which will not combine chemically is ______________
INSTANT OXIDATION
an explosion is an example of ___________________-
ATOM
basic unit of matter
NEILS BOHR
drew 1st picture of atom
EQUAL
for an object to float, the mass of the water displaced must _________________ the mass of the object
NEUTRON
has no electrical charge
8
how many electrons does it have in the n=2 orbit?
118
how many identified elements does the periodic table show?
12
how many neutrons does sodium have?
11
how many protons does sodium have?
VOLUME
l x w x h
DENSITY
mass/volume
CONCRETE
mixture
INNER SHELL
n = 1
MASS VOLUME
the 2 basic properties of all matter are __________ and ____________
MIXTURE
the air in the troposphere is a _______________________
DENSITY
the amount of mass per unit volume
PROTONS PLUS NEUTRONS
the atomic mass is a measure of ___________________
PROTONS & NEUTRONS
the atomic mass of an atom equals the sum of the masses of the _______________
COMPARISON WITH STANDARD MASS UNITS
the mass of an object is found by _____________________
MOLECULE
the smallest atomic unit which maintains the physical properties of a compound is a ___________________
ATOM
the smallest possible part of an element that can still be identified as the element is called _______________
FREEZING
the temperature at which a liquid changes to a solid is called its _______________ point
BUOYANCY
upward force of a liquid on an object
Na
what is the chcmical symbol for sodium
