Chemistry
Grade-9
Easy
Question
What is the atomic number of this atom?
- 2
- 4
- 6
- None of the above
Hint:
Atomic number = number of protons
The correct answer is: 2
- For a neutral element number of proton and number of neutron is equal.
- Atomic number = number of protons
- Here number of proton is 2, hence atomic number is 2.
Related Questions to study
Chemistry
Carbon-12 has 6 protons and 6 neutrons. How many electrons will orbit the nucleus?
Carbon-12 has 6 protons and 6 neutrons. How many electrons will orbit the nucleus?
ChemistryGrade-9
Chemistry
What is the mass number of this atom?
What is the mass number of this atom?
ChemistryGrade-9
Chemistry
How many electrons does potassium K contain?
How many electrons does potassium K contain?
ChemistryGrade-9
Chemistry
What element is represented in this Bohr Model?
What element is represented in this Bohr Model?
ChemistryGrade-9
Chemistry
How many valence electrons does Magnesium Have?
How many valence electrons does Magnesium Have?
ChemistryGrade-9
Chemistry
How many valence electrons does Nitrogen Have?
How many valence electrons does Nitrogen Have?
ChemistryGrade-9
Chemistry