Periodic Table of Elements
Terms in this set (37)
How many periods are there in the periodic table?
How many groups are on the periodic table?
The ________________ tell us how many valence electrons the elements have.
The ________________ tell us how many electron shells the elements have.
What can be found along both sides of the staircase (zigzag line) on the periodic table?
What can be found on the left side of the zigzag line on the periodic table?
With the exception of metalloids, what can be found on the right hand side of the zigzag line on the periodic table?
What is the outer shell around the nucleus of an atom called?
What is the only element along the zigzag line that is not a metalloid?
________________ are malleable and ductile.
The atomic number tells us how many __________________ there are.
protons (and electrons)
How do you determine the number of neutrons in an element?
Round the atomic mass to the nearest whole number to find the mass number. Then, subtract MASS NUMBER - ATOMIC NUMBER = number of neutrons.
What does is mean if something is both ductile and malleable?
It can be stretched or flattened without breaking.
What are the most unreactive elements on the table?
_____________ go side to side on the periodic table.
______________ go up and down on the periodic table.
The elements in group one are called _____________.
The elements in group two are called ____________.
alkaline earth metals
What group has the most reactive elements on the periodic table?
Group 1 (alkali metals)
Most elements are ____________ at room temperature.
Another name for groups is _________________.
How many elements are liquid at room temperature?
Protons have a _____________ charge.
Neutrons have a _____________ charge.
neutral (no charge)
Electrons have a _____________ charge.
Where are protons located in an atom?
in the nucleus
Where are electrons located in an atom?
on electron shells outside the nucleus
Where are neutrons located in an atom?
in the nucleus
What is conductivity?
The ability of an object to transfer heat or electricity to another object.
Why are elements grouped together in the same column?
because they usually have similar properties
How did the noble gases get their name?
because they don't associate well with other elements
What are the names of the elements in the center of the periodic table?
The number of ________________ is equal to the number of protons.
This type of bond happens when electrons are shared between atoms.
This type of bond happens when atoms lose or gain electrons to form a charged ion.
This type of bond happens when two nonmetals bond.
This type of bond happens between a metal and a nonmetal.