Chemistry
Elements represent unique forms of these tiny things. The building blocks of everything!
Atoms
Atomic number of nitrogen
7
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 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?
Most reactive metal
Potassium
What is located in the outermost shell of an atom?
valence 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?
What is maximum number of electrons in the first energy shell?
2
Neutrons have this kind of charge
What is a neutral charge?
Name two dangerous acids
HCL and KCL
Lithium, sodium, potassium, rubidium, caesium and francium belong to the family of ______________
What is Alkali metal.
Group 18 elements on the right hand side of the periodic table of elements.
What are the Noble Gases?
What does increase in the group number mean? (periodic trend)
Increase in valence electrons
Two different elements that have bonded.What is the result known as?
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
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?
Who created the periodic table?
Dmitri Mendeleev
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?