Families of the Periodic Table
What family is lithium apart of?
Alkali Metals
How many protons does hydrogen have?
One
What is the chart full of elements called and why?
Periodic Table of Elements, it was called that because of the way the elements are arranged, in periods.
What are the two regions of an atom?
The nucleus and the orbitals.
What is the name of this compound: H2O?
Water
Where are the non-metals located?
To the right of the "staircase" and one is located in the first column of the table.
What is the atomic number and amount of protons magenesium has?
Twelve
What is an element?
A substance whose atoms all have the same number of protons.
What is an atom?
The basic building block of matter.
What is sodum chloride known as?
Salt
Why are the metalloids called metalloids?
They contain properties of both metals and nonmetals.
How many valence electrons are in the last orbital of sulfur?
six electrons
Who arranged the elements in order in the periodic table?
John Newlands and Dmitri Mendeleev.
How many nuetrons are in the atom of Helium?
Two
What is a compound?
A substance that is compoed of two or more different elements.
What family is xenon apart of?
Noble Gases
If mercury's atomic number is 80 and the mass is 200.59, how many protons are there in a mercury atom?
121 neutrons
Who was the first person in history to discover an element
Hennig Brand
Atoms are composed of what particles?
Protons, nuetrons and electrons
What is the name of this compond: NaHCO3?
Sodium bicarbonate, also known as baking soda.
What family is gold apart of?
Transitional Metal
How many protons, nuetrons, and electrons does uranium have?
It has 92 protons, 146 nuetrons, and 92 electrons
How was Uranium made originally?
Eugene Peligot made it by heating uranium tetrachloride with potassium.
What is the name of the compound when one boron atom bonds to three hydrogen atoms?
Borane
What is the formula for dichlorine heptoxide?
Cl2O7