Atoms
Periodic Table
Elements
Special Elements
Extras
100
Protons are located in the ______ of an atom and have a _______ charge.
What is nucleus and positive.
100
The modern periodic table is organized in _____ and ______.
What is groups and periods or families.
100
The four physical properties used to classify metals are known as....
What is hardness, luster, malleability and ductility.
100
The atomic number of nitrogen is 7. The atomic mass is 14.01. This means...
What is a small percentage of nitrogen atoms have more than 7 neutrons.
100
In a covalent bond, electrons are shared between two atoms. (True or False)
What is true.
200
Electrons are located _______ the nucleus and have a ________ charge.
What is ouside and negative.
200
The scientist most noted for discovering the periodic table.
Who is Mendeleev.
200
Which elements are the most reactive on the periodic table and never found alone in nature?
What is the alkali metals.
200
The three most common diatomic molecules are...
What are oxygen, nitrogen and hydrogen.
200
The process is which existing nuclei combine to make new nuclei.
What is fusion.
300
Atoms from a chemical bond by sharing...
What is valence electrons.
300
The name of the elements in the second column of the periodic table that have 2 valence electrons.
What is alkaline earth metals.
300
Groups 3 though 12 of the periodic table are known as...
What is transition metals.
300
All elements in the same period have the same number of...
What is shells or energy levels.
300
If an atom loses an electron, it forms a ________ ion.
What is positive.
400
The number of valence electrons for and element can be illustrated by drawing an...
What is Lewis dot diagram.
400
The number at the top of each elements "box" on the periodic table is known as it's _______ which is equal to it's _______.
What is atom number and protons.
400
The most electromagnetic element on the periodic table is...
What is Florine.
400
Mercury is the only element on the periodic table that is a ______ at room temperature.
What is a liquid.
400
It is possible to have a double covalent bond? (True or False)
What is true.
500
To calculate atomic mass you need to add the _______ and _______ of an atom.
What is the protons and neutrons.
500
To determine an atoms atom mass you must add its ______ and it's ______.
What is protons and neutrons.
500
The atoms of the same element can have different isotopes. An isotope of an atom...
What is an atom with a different number of neutrons.
500
In the process of ionic bonding, ions come close together because...
What is positive and negative ions attract.
500
Atoms have three subatomic particles. They are...
What is protons, neutrons and electrons.
M
e
n
u