Periodic Table
What number tells you the number of protons and electrons?
What is Atomic Number?
Most elements are nonmetals.
False
What is the name of the element with the elemental symbol Nb?
Niobium
How many hydrogen atoms are in one water molecule?
2
What is the element name of Palladium ?
Pd
What is the name of the person who invented the periodic table?
What is Dmitri Mendeleev?
There are 18 rows on the periodic table.
False
What is the name of the element number 12 and what is the atomic number?
Magnesium, 12
How many carbon atoms are in one molecule of carbon dioxide?
1
What is the element name for chlorine ?
Cl
What is the 3 main groups in the periodic table?
What is metals, nonmetals, & metalloids?
Main group elements include solids, liquids, and gases.
True
What element has the atomic mass of 222?
Radon
How many atoms IN TOTAL make up one molecule of glucose?
24
What is the element name of mercury?
Hg
What is the amount of known elements in the periodic table?
What is 115?
Bromine is in Period 4.
True
Which element has 29 as its atomic number?
Copper
What is the chemical formula for ammonia?
NH3
What is the element name of Tin?
Sn
What is the difference between groups and periods on the Periodic Table?
What is groups elements in a column & periods contain a series of different elements?
When Mendeleev created the first periodic table the elements were put in a specific order based on increasing atomic mass.
True.
What element has the elemental symbol Np?
Neptunium
What is the chemical formula for table salt?
NaCI
What is the element name of lead?
Pb