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WorksheetsEOQ 1 Matter and Energy Practice
Total questions: 41
Worksheet time: 1hrs 19mins
Which subatomic particles determine if an atom is neutral?
Protons and electrons
Electrons and Neutrons
Neutrons and Protons
Only neutrons
Is the atom stable or reactive? WHY?
Stable: it has the same number of protons as it does electrons
Reactive: it has the same number of protons as electrons
Reactive: it has a full valence shell
Reactive: it has only one valence electron
___________(s)tell us the number of energy level in an atom.
Group #
Proton #
Period #
Neutron #
Which family on the periodic table is made up of all gases?
Alkali Metals
Noble Gases
Transition Metals
Halogens
What is the name of the atom pictured?
Sodium
Magnesium
Oxygen
Vanadium
Which two of the following elements have similar reactivity?
Bromine & Chlorine
Boron & Oxygen
Carbon & Nitrogen
Hydrogen & Helium
What is the density of a rock that has a volume of 120 milliliters and a mass of 60 grams?
.5g/mL
2g/mL
.5g/cm3
2g/cm3
How many total atoms are in the compound?
3
4
5
6
How may atoms of Oxygen are in the compound?
1
3
12
14
How many elements are in the formula?
2
3
4
5
Which of the following compounds contains 4 different elements?
LiClO3
CH4N2O
HCl
CO2
Choose all of the following that are physical properties.
Density
Boiling point
Magnetism
Good Conductor
Reactivity
