Properties
Define Ductility.
The ability of a substance to be pulled into wires.
A horizontal row on the periodic table is called what?
Period
Which subatomic particle of an atom is responsible for the negative charge?
Electron
You are investigating whether blue jays prefer one type of bird seed over any other type. Your independent variable is the type of bird seed used. What is your dependent variable?
The number of blue jays that visit the feeder.
A metal spoon will feel warm to the touch a few minutes after being placed in a bowl of hot soup. Which property of the metal is demonstrated by this observation?
Conductivity
The periodic table has rows and columns that organize elements according to similar properties. What is the name for a column on the periodic table?
Group
Which subatomic particle of an atom determines an element's atomic number on the periodic table?
Proton
When scientists explain or interpret the observations they make based upon the information they already know, they are what?
Making Inferences
Samira wants to craft a box from a sample of raw metal. She would like the box to be very shiny and thin side walls. Which two properties of metals should Samira consider when choosing a metal to craft the box?
Luster and Malleability
The elements in Group 17 of the periodic table are known as?
Halogens
Describe a characteristic of every element in the periodic table?
The smallest unit of every element is an atom.
Since the organization of the modern periodic table shown in the passage, it has been updated several times. What explains why the periodic table has been changed and may continue to change in the future?
New elements were discovered and added to the periodic table based on their properties.
Recall that properties of elements follow repeating patterns within the periodic table. Which group on the periodic table would have elements with the greatest metallic properties (for example: luster, malleability, and electrical conductivity)?
Group 1
The majority of elements listed on the periodic table can be classified as?
Metals
Atoms are made up of subatomic particles, including neutrons. Describe a neutron?
No Charge
Alkali metals are highly reactive and must be stored in oil to prevent them from reacting with the oxygen and water vapor in the air. The image below shows samples of potassium and sodium reacting with water. Using the information above and the periodic table resource sheet available, which other metal on the periodic table would have similar chemical properties to potassium and sodium?
Lithium
A student measures the mass and volume of a substance and calculates its density. The student then heats the substance until it melts. What happens to the density of the substance after it melts?
The density of the substance descreases.
What do elements in the same group on the periodic table typically have?
Similar Chemical Properties
Chlorine is a greenish-yellow corrosive gas at room temperature. A second element on the periodic table is a pale-yellow corrosive gas under the same conditions. Which element is most likely to be the second element, and why?
Flourine
Which elements are located in Group 18 of the periodic table?
Noble Gases