Which statement about atoms is true?

Fill in the blank with the charge for the given particle.

Electron is _______.

Fill in the blank with the charge of the given particle.

Proton is _______.

Fill in the blank with the charge of the given particle.

Neutron is _______.

Compared to the charge and mass of a proton, an electron has ___________________.

The total number of electrons in a neutral atom of every element is always equal to the atom's ________________________.

The atomic mass is equal to which two items added together?

Look at the information on the element box below to answer the following questions.

Atomic Number:___

Look at the information on the element box below to answer the following questions.

Atomic Mass:_____

Look at the information on the element box below to answer the following questions.

Number of Protons:___