Chemical Symbols
What is Manganese
The positively charged particles in the centre of an atom
What are protons?
This number identifies an element and is equal to the number of protons
What is the atomic number
This element is atomic number 1
What is hydrogen
These are the smallest divisible units of matter
What are atoms?
This is the chemical symbol for Vanadium
What is V
The neutrally charged particles in the centre of the atom
What are neutrons?
This number is equal to the number of protons + the number of neutrons
What is the atomic mass
This element is atomic number 3
What is lithium
This would be the atomic mass of a helium atom with two neutrons
What is four?
This element's chemical symbol is Na
The negatively charged particles that orbit the centre of the atom
What is an electron
This is one or two letters which denote a particular element.
What is a chemical symbol
This element is atomic number 6
What is carbon
This word describes the charge of atoms with the same number of electrons and protons
What is neutral?
This is the chemical symbol for Argon
What is Ar
The centre of the atom, comprising a positively charged particles and neutral particles
What is the nucleus
What is an element?
This element is atomic number 7
What is nitrogen
Atomic theory proposes that all atoms of the same element are...
What is identical
A chemical symbol always begins with this
What is a capital letter
Negatively charged particles orbit the centre of the atom at these certain distances. The first holds up to two negatively charged particles, the second and third hold up to eight each.
What is an electron shell
The number below the element name on the periodic table, given to decimal places.
What is the average atomic mass
This element is atomic number 10
What is neon
This person was the first scientist to propose the atomic theory
Who is John Dalton