In which row is oxygen found ?
row 2
Label the following element as a metal, non--‐metal, or metalloid. Oxygen
Non -Metal
in which group is Neon found?
group 8
Mendeleev arranged the elements in his periodic table in order of increasing atomic mass.
False, increasing atomic number.
Nitrogen is in Group 5 . How many valence electrons does it have ?
five
How is the modern periodic table organized?
increasing atomic number
What is the symbol for Potassium ?
K
The Story of the Father of Periodic Table.
Mendeleeve
Mendeleev and other scientists were able to use the periodic table to predict the properties of undiscovered elements.
True
The elements in the same row in the periodic table have similar physical and chemical properties.
False , same group
Early chemists used the properties of elements to sort them into groups. True or False ?
True
What is the name of the element that is in the 4th row and group 3_____________?
Aluminum Al
What is the name of the element that is in the 3rd period and group 4 _____________?
silicon Si
Label the following element as a metal, non--‐metal, or metalloid “Na*
Metal
Around 80% of the elements are metals and occupy the left side of the periodic table.
True
Which of the following is metalloid ? Lithium , Silicon or helium ?
Silicon Si
There are ---------- main groups in the periodic table.
8
Each period/row in the periodic table corresponds to a(n) ____.
principle level
There are ----------- rows, or periods, in the table
seven
What properties of metal is represented in this diagram ?
malleability