Background Info
Groups
Elements
Periods
Properties
100
How were the elements in the first periodic table set up?
elements' atomic masses
100
What is a group?
A chemical family or a vertical column with elements that share similar chemical properties
100
What are some chemical properties of elements?
1.Flamibility 2.Ability to rust 3.Reactivity
100
What are periods? (Definition)
A horizontal row in the periodic table
100
Is 'Reactivity' a physical or chemical property?
chemical
200
What is the Periodic Table used for?
to organize information about all known elements according to their properties
200
What do groups tell about an element?
valence electrons
200
what is an element that has six protons, six neutrons, and six electrons?
carbon
200
How many periods are there?
7
200
What is a characteristic that determines how a substance will interact with other substances during a chemical reaction?
Chemical Property
300
How many elements were discovered by 1860?
60
300
How many groups are there?
18
300
Name all elements from the hydrogen group
hydrogen
300
What do periods increase in?
atomic number
300
What is an example of a physical property?
1.) color 2.) luster 3.) state 4.) shape
400
What is the atomic mass of an element?
number of protons and neutrons in the nucleus of one atom of an element
400
What 2 types of Transition Metals are there?
1.Lanthanides 2.Actinides
400
What is an element with an atomic number of 29?
Copper
400
Name all elements from period 1.
Hydrogen and Helium
400
What is a Physical Property?
a characteristic that can be observed or measured without changing the identity of a substance
500
Who organized the first Periodic Table?
Dmitri Mendeleev
500
Name groups 1, 2, 3-12, 17, 18
1. Alkali Metals 2. Alkaline-Earth Metals 3-12. Transition Metals 17. Halogens 18. Noble Gases
500
Name the element with an atomic mass of 173.040.
Ytterbium
500
Name all elements from period 2.
Lithium, Beryllium, Boron, Carbon, Nitrogen, Oxygen, Fluorine, and Neon
500
What does the number of valence electron determine about an element?
Reactivity
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