Which subatomic particle determines the identity of an element?

How many hydrogen atoms are in the compound, H2SO4?

What makes up the mass of the atom?

How many neutrons are in an atom with a mass number of 13 and 7 electrons?

Chlorine has atomic number 17 and mass number 35. How many protons, electron, and neutrons are in a chlorine atom?

If the atomic number of an element is 10, how many protons are there?

What particles are in the nucleus of an atom?

Which statement is true about carbon dioxide (CO2) and carbon monoxide (CO)?

Who worked with Rutherford to discover neutrons?

Which subatomic particle has the least amount of mass?

Who discovered that the atom’s mass and positive charge are concentrated in a small area in it’s center?

Who stated that electrons exist in distinct circular orbits around the nucleus called energy levels?

Which is the smallest piece of an element that still represents that element?

Which analogy best describes atoms in Dalton’s atomic model?

Who is the English scientist who concluded that atoms have negatively charged particles called electrons embedded in a solid positively charged sphere?

Which scientist stated that matter is made of atoms that cannot be created or divided and that atoms combine in specific proportions?

Which part of Dalton’s Atomic Theory is no longer supported by the modern atomic model?

Which subatomic particle has a negative charge?

Who was the Greek philosopher who thought that matter is made up of fire, water, air, and earth?