Atoms
Elements
Protons, Neutrons, electrons
Periodic Table
Periodic Table cont.
100
This is a small particle that an element can be broken down to ans still be the same element.
What is an atom
100
Made up of only one kind of atom
What is an element
100
How many number of protons does Oxygen have?
8
100
These are found on the right side of the periodic table
What is metalloids and non metals
100
What are the horizontal (rows ) called?
periods
200
This is an uncharged particle in the nucleus of the atom.
What is a neutron
200
These are on the periodic table
What is an element
200
what is the number of neutrons in Neon?
10?
200
This is the number of protons in the nucleus of each atom of an element
What is the atomic number
200
What are the columns called?
Groups
300
These are atoms of the same element that have different numbers of neutrons.
What is an isotope
300
These are shiny, good conductors of heat and have luster
What is a metal
300
What is the number of electrons in gold?
79?
300
This is the sum of the an atom's protons and neutrons
What is mass number
300
Which element belongs to Group 12 and Period 4?
??
400
This is a positively charged particle in the nucleus of the atom
What is a proton
400
These are poor conductors of heat and electricity. They are dull in appearance
What is a non metal
400
How many neutrons does the Carbon -14 have?
8?
400
This is the weighted average of mass of an element
What is atomic mass
400
What is the group and period of Au?
??
500
This is a negatively charged subatomic particle
What is an electron
500
Elements that have characteristics of metals and non metals
What is a metalloid
500
How many electrons does +3 ion of carbon contain?
3
500
What are the last 2 rows which are not a part of the main table called?
Lanthanides and actinides
500
Who created the first periodic table and how was it different than the current one?
Mendeleev and arranged by atomic mass not number
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