Atom Structure Quiz1

Changing the number of neutrons of an atom changes its

Who discovered that the center of an atom is positive and called atom's center, nucleus?

The three basic components of an atom are

Who discovered the third subatomic particle neutron(no charge particle) inside an atom

Who discovered the positive protons inside an atom?

A single proton has what electrical charge?

According to atomic theory, electrons are usually found 

Changing the number of electrons of an atom will produce different

Each element in the periodic table is determined by the number of 

The atomic number of an atom is the number of

The nucleus of an atom consists of 

Who is NOT a proponent of atom  theory models?

Which two particles would be attracted to each other?

Who discovered the negative charge electrons in an atom?

The two subatomic particles that have approxiately the same size and mass are