Parts of the Atom
This subatomic particle has a negative charge and a mass of almost 0 AMU
Electron
Is reactivity a physical or chemical property?
Chemical property
The group number for the element Neon (Ne)
Group 18/8A
Noble gases
The volume of a liquid is 5 mL and the mass of the liquid is 25 g. What is the density?
5 g/mL
This subatomic particle changes the name of an element
Proton
Reactivity of an atom with 4 electrons (Most/More/Less/Not)
LESS reactive
What information about an atom does its period tell you?
Number of energy levels
Is Tungsten (W) a metal, nonmetal, or metalloid?
Metal
Four boxes with the exact same mass have the following volumes:
Blue= 12 ml
Red= 4 ml
Yellow= 5 ml
Which box color has the greatest density?
Red
The full name of the units for the mass of an atom
Atomic Mass Units
Reactivity of an atom with 7 electrons (Most/More/Less/Not)
MOST reactive
The period number for the element Iron (Fe)
Period 4
Name as many characteristics of metals as you can!
Lustrous
Malleable
Ductile
Good conductor of heat
Good conductor of electricity
High melting temperature
etc.
The volume of a solution was measured in a graduated cylinder to be 45 mL. If the mass of solution is measured to be 60.75 grams, what is the density of the solution?
1.35 g/ml
APEMAN for the element Nitrogen with a mass of 15
A - 7
P - 7
E - 7
M - 15
A - 7
N - 8
What controls the reactivity of an element?
Valence electrons
Elements that are in the same group have similar _______.
chemical and physical properties
What group is an unknown element with the following properties a part of?:
Lusterous
Good conductor of electricity
Malleable
Metal
Calculate the density of an unknown object using the data provided below:
Mass of Object=26 g
Volume of Water=14 ml
Volume of Water + Object=18 ml
6.5 g/cm3
The two main areas of an atom
Nucleus and Electron Cloud
The reactivity of helium (Most/More/Less/Not)
NOT reactive
What information about an atom does its group tell you?
Number of valence electrons
The name for the area that the Metalloids are located in
The staircase
An irregularly shaped stone was lowered into a graduated cylinder holding a volume of water equal to 2 ml. The height of the water rose to 7 ml. If the mass of the stone was 25 g, what was its density?
5 g/cm3