How Many p+?
How Many e-?
How Many n0?
Anions
Cations
100
The number of electrons in H.
What is 1?
100
How many electrons doe this element have?
WHat is 20?
100
How many neutrons?
What is 1?
100
This is the name for an atom with an "extra" electron.
What is an anion?
100
This is the name for an atom with a "missing" electron.
What is a cation?
200
The atomic number of He
What is 2?
200
Oxygen has atomic number 8 and mass number 16. How many electrons does oxygen have?
What is 8?
200
How many neutrons?
What is 6?
200
How many protons in this anion?
What is 8?
200
How many protons in this cation?
What is 19?
300
The number of protons in an element is also called this.
What is atomic number?
300
This element has how many electrons?
What is 10?
300
How many neutrons?
What is 12?
300
How many electrons in this anion?
What is 10?
300
How many electrons are in this cation?
What is 18?
400
The name of element with 6 protons.
What is Carbon?
400
In a neutral atom the number of electrons is equal to the number of this.
What are protons?
or
What is the atomic number?
400
To calculate the number of neutrons, you first need to round this.
What is the mass number?
400
How many electrons are in this anion?
What is 18?
400
How many electrons are in this cation?
What is 10?
500
The chemical symbol for sodium, 11 protons.
What is NA?
500
This is the number of electrons in H.
What is 1.
500
To calculate the number of neutrons you subtract this from the mass number.
What is the atomic number?
or
What is the number of protons?
500
To calculate the number of electrons in an anion you take the exponent of the symbol and add this.
What is the atomic number?
or
What is the number of protons?
500
To calculate the number of electrons in a cation you take the exponent of the symbol and subtract it from this.
What is the atomic number?
or
What is the number of protons?