Vocab
Define Luster
metals that have a metallic shine
Define Metal and Non Metal
Metal: elements that are typically hard, shiny, and good conductors of heat and electricity
Non Metals: elements that lack the properties of metals and are typically poor conductors of heat and electricity.
Where are Alkali Metals located on the Periodic Table?
Group 1
Halogens reactivity is _________
Noble Gases reactivity is _________
Halogens: very high
Noble Gases: very low
Actinides are a type of _______ (Metal or Non Metal)
Lanthanides are a type of ________ (Metal or Non Metal)
Metal
Define Malleability
Metals can be hammered or pressed into shapes without breaking.
Give as many properties of Non metals as you can
Dull Appearance: Non-metals are not shiny and have a dull appearance.
Poor Conductors: Non-metals are poor conductors of heat and electricity (except for graphite, a form of carbon).
Brittleness: Non-metals are generally brittle in their solid state (they break easily).
Low Melting and Boiling Points: Many non-metals have low melting and boiling points.
Not Ductile or Malleable: Non-metals cannot be drawn into wires or hammered into sheets.
Where are Alkaline Earth Metals located on the periodic table?
Group 2
Where are Halogens located on the periodic table and what are they known as
Halogens are known as The reactive Non Metals and are located in Group 17
What are lanthanides and actinides state at room temperature?
1. Lanthanides: Solid
2. Actinides: Solid
Define Element
a substance that can not be broken down any further
Give as many properties of metals as you can
Shiny (Luster): Metals have a metallic shine or luster when polished.
Conductivity: Metals are good conductors of electricity and heat.
Malleability: Metals can be hammered or pressed into shapes without breaking.
Ductility: Metals can be drawn into wires.
High Melting and Boiling Points: Metals tend to have high melting and boiling points.
Hardness: Most metals are hard and strong (but some, like sodium, are soft).
Name 3 properties of Alkali Metals
Answers May Vary:
Soft and shiny: they are soft enough to be cut with a knife and have a metallic luster that tarnishes quickly when exposed to air
Low melting and boiling points: their weak metallic bonds result in lower melting and boiling points compared to other metals
Low density
Good conductors of electricity and heat
High reactivity: they are extremely reactivity and are never found in nature, always as compounds
Reaction with water: They react vigorously with water
Low electronegativity
What are halogens and noble gases state at room temperature
Halogens: Gas/Liquid
Nogle Gases: Gas
Where are lanthanides known as and where are they found on the periodic table
Known as the shiny metals and found in the first bottom row (57-71)
Define Electronegativity
the measure of an atom's ability to attract shared electrons in a chemical bond. Simply put, it's how "greedy" an atom is for electrons when it's bonded to another atom
What is a metals and non metals state at room temperature?
Metals: solid
Non Metals: Solid, liquid, or gas (depending on the element)
Name 3 properties of Alkaline Earth Metals
Reactivity: their reactivity increases as you move down the group.
Hardness: they are harder than alkali metals but generally softer than other metals, with hardness increasing down the group
Density: their density generally increases from magnesium to radium
Color: they are silvery-white metals, though they tarnish in air
Very Stable: they don't easily react... is describing ______
Very Reactive... Especially with metals is describing _______
1. Noble Gases
2. Halogens
Lanthanides reactivity is _______
Actinides reactivity is _______
1. Lanthanides: Medium
2. Actinides: High (radioactive)
Valence Electrons
the electrons in the outermost shell of an atom, which are responsible for an atom's chemical reactivity and bonding behavior The number of valence electrons can be found by looking at the element's group number on the periodic table.
Name 5 metals and 5 Non Metals
Answers May Vary
Non Metals:
Metals:
Name 3 examples of alkaline earth metals and 3 examples of alkali metals
Answers May Vary:
Alkaline Earth Metals: Beryllium, Magnesium, Calcium, Strontium, Barium, Radium
Alkali Metals: Lithium, Sodium, Potassium, Rubidium, Cesium, Francium
What are 1 real world uses for halogens and 1 for noble gases that we talked about in class
Answers May Vary
Noble Gases:Balloons, lights
Halogens: Salt, disinfectants
What are 1 real world use for lanthanides and one for actinides that we talked about in class
Lanthanides: Magnets, tech
Actinides: Nuclear power