The number of electrons in H.
What is 1?
How many electrons doe this element have?
WHat is 20?
How many neutrons?
What is 1?
This is the name for an atom with an "extra" electron.
What is an anion?
This is the name for an atom with a "missing" electron.
What is a cation?
The atomic number of He
What is 2?
Oxygen has atomic number 8 and mass number 16. How many electrons does oxygen have?
What is 8?
How many neutrons?
What is 6?
How many protons in this anion?
What is 8?
How many protons in this cation?
What is 19?
The number of protons in an element is also called this.
What is atomic number?
This element has how many electrons?
What is 10?
How many neutrons?
What is 12?
How many electrons in this anion?
What is 10?
How many electrons are in this cation?
What is 18?
The name of element with 6 protons.
What is Carbon?
In a neutral atom the number of electrons is equal to the number of this.
What are protons?
or
What is the atomic number?
To calculate the number of neutrons, you first need to round this.
What is the mass number?
How many electrons are in this anion?
What is 18?
How many electrons are in this cation?
What is 10?
The chemical symbol for sodium, 11 protons.
What is NA?
This is the number of electrons in H.
What is 1.
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?
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?
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?