Balancing
Periodic Table Trends
Parts of an Atom
Elements Compounds and Mixtures
Physical Properties
100
This many hydrogen atoms are contained in on molecule of hydrogen gas: H2
What are 2.
100
Each element on the periodic table has an unique number of ______________. If you change these, you change the element.
What are protons?
100
The charge of the sub atomic particle referred to as a proton?
What is positively charged?
100
The part of a solution that is the largest part and does the dissolving is called the
What is the solvent?
100
This major group of elements have properties of both metals and non-metals.
What are the metalloids?
200
There are ________________ oxygen atoms in one molecule of calcium carbonate; CaCO3.
What are three.
200
Elements within the same Horizontal rows or periods on the periodic table have the same__________
Number of electrons shells or electron clouds.
200
The charge of the sub atomic particle referred to as a; neutron?
What is neutral?
200
This major group of elements have properties of both metals and nonmetals.
What are metalloids?
200
This term describes the ability for metals to be drawn into wires.
What is ductile?
300
Determine the number of oxygen atoms if you had 3 carbonic acid molecules: 3H2CO3
What are nine (9). 3H2CO3
300
Groups on the periodic table have similar properties due to having _________________.
The same number of electrons in their outer most electron shell/cloud.
300
Identify the sub atomic particles that are located in the nucleus.
What are the protons and neutrons?
300
When making Kool aid, you add the Kool aid mix and sugar that dissolve to water. The sugar and mix are the smaller parts of the mixture and are referred to as
What is the solute?
300
This term describes the ability of a metal to be pounded into flat sheets.
What is malleable?
400
True of false; is the following chemical equation balanced?
2NaBr + CaF2 → 2NaF + CaBr2
True: 2 Na 2Br 1Ca 2 F on both sides of the periodic table.
400
D
According to the periodic table tile, determine the number of electrons that are orbiting an Iron atom.
What is 26?
400
The subatomic particles called electrons are located ____________________
What are electron clouds or shells?
400
This is an example of a mixture of compounds and molecules that are uniform throughout the mixture.
This type of mixture is referred to as being _____________________
What is homogenous?
400
The Group 18 elements on the periodic table contain a full or complete outer shell of electrons. Due to a complete outer shell they
What is, do not react with other elements.
500
The reactants in this chemical equation include: 4P + 5O2 → 2P2O5
What are 4P + 5O2 ?
500
Determine the number of protons in a calcium atom.
What are 20?
500
In an atom, the number of protons equals the number of
What is the number of electrons.
500
A pure substance, such as water, can only be separated by ___________ methods.
What are chemical methods.
500
A mixture of metals is referred to as _______________________
What is an alloy.