Most elements are found in this region of the Periodic Table.
What is the metal region?
100
All elements in a row are called this because they share similar properties.
What is a family or group?
100
The element with the atomic number 6.
What is carbon?
100
This type of element has a higher density.
What are metals?
200
A negatively charged sub-atomic particle NOT found in the nucleus.
What is an electron?
200
Elements in this region have do not conduct heat or electricity and tend to be dull and brittle.
What are non-metals?
200
A student divides several cubes into 2 groups based on if each cube can float or not. This student is classifying these cubes by this property.
What is density?
200
This element has 8 protons.
What is Oxygen?
200
The most reactive metals are part of this family.
What are alkali metals?
300
An electron has a negative charge and CANNOT be found here in an atom.
What is the nucleus?
300
These elements have some properties of metals but also some properties of nonmetals.
What are semimetals or metalloids?
300
This group of elements is found on the far right and has low reactivity with other elements.
What are noble/inert gases?
300
This gas has an atomic mass of 14 amu.
What is Nitrogen?
300
Neon-22 is an isotope of Neon-21. Besides the atomic mass, the other difference between these two atoms is this.
What is the number of neutrons?
400
This identifies how many protons or electrons are in an element if the element has no charge.
What is the atomic number?
400
To find metals that are the most reactive, you should look to this region of the Periodic Table. (Give 2 directions)
What is the left and top regions of the Periodic Table?
400
Metals have valence electrons that are free to move from atom to atom so they can conduct these 2 things well.
What are electricity and heat?
400
This nonmetal element has 16 neutrons, that's 15 less than it's atomic number.
What is Phosphorus?
400
Oxygen normally has an atomic mass of 16. The atomic mass of Oxygen-18 is this.
What is 18?
500
To find the number of neutrons in an atom, you must subtract these two atomic numbers.
What is the atomic mass minus the atomic number?
500
An element located in Group 16 of the Periodic Table can be either of these 2 types of elements.
What are nonmetals or semimetals?
500
How strong these are will determine an element's melting temperature and hardness.
What are the forces that hold the atoms together?
500
This metal has 125 neutrons, 82 less than its atomic number.
What is Lead?
500
When atoms from the left side of the Periodic Table combine with the atoms on the right side, they form these bond that have crystalline forms with high melting points.