Chemistry
The maximum number of electrons in the first energy shell
What is 2?
F
What is the element symbol for Flourine?
Protons have this charge
What is a postive charge?
Neon and Argon are examples of this.
What are Gases?
Elements that are the most abundant on the periodic table.
What is a Metal?
The number you use to find the number of protons in the nucleus.
What is the atomic number?
3 main states of matter
What are Solid, liquid, and Gas?
Ca
What is the element symbol for Calcium?
Baking ingredients for a cake results in what kind of change?
What is a chemical change?
This is often involved when a chemical change is taking place?
What is heat or an odor?
The atomic number tells us this.
What is the number of protons?
The maxiumum number of electrons in the 2nd energy shell
What is 8?
Water is made of these two elements.
What is hydrogen and oxygen?
O₂
What is an oxygen molecule?
Name the scientist who created the periodic table of elements.
Mendeleev
Group 18 elements on the right hand side of the periodic table of elements.
What are the Noble Gases?
7
What is the atomic number of Nitrogen?
Two different elements that have bonded.
What is a compound?
Alkali metals belongs to this group
What is Group 1
Name all 3 subatomic particles.
What are Protons, Neutrons, and Electrons
Ions are made in what way.
What is losing (stealing) or gaining electrons?
Making ice cubes from water is what kind of change?
What is a physical change?
Covalent bonding happens generally between these type of elements.
What are nonmetals?
Group or family 17 elements are these.
What are Halogens?
The sum of protons and neutrons in the nucleus of an atom is known as the _________
What is the mass number?
A covalent bond is formed by
What is the sharing of electrons?
Elements represent unique forms of these tiny things. The building blocks of everything!
What are atoms?
Neutrons have this kind of charge
What is a neutral charge?
These hold together molecules
What are covalent bonds
Lithium, sodium, potassium, rubidium, caesium and francium belong to the family of ______________
What is Alkali metal.
There are this number of elements on the periodic table of the elements.
What is 118?
The most abundant gas in the atmosphere.
What is Nitrogen?
Valence electrons are located in this shell
What is the outermost shell of an atom?
This refers to sets of eight.
What is the octet rule?
The presence of this layer is found in the stratosphere of the atmosphere.
What is the ozone layer?