Atomic structure

The atomic number for Oxygen is 8, so

• there are 8 protons in the atom

• the atomic mass is less than 8

• the mass of the atom is 8

• there are 8 electrons

This particle is found in the nucleus and has no charge

• Neutron

• Proton

• Electron

• Atom

What is the atomic mass of Chlorine?

• 17

• 35.45

• Cl

• Chlorine

__________ is the amount of matter in an object.

• Volume

• Mass

• Matter

• Density

All matter is made of

• energy

• atoms

• air

• chemistry

Where is the majority of the mass found in the atom?

• The outer shell

• The nucleus

• The orbiting electrons

• The atom has no mass

Where is/are proton(s) found in the atom?

• The outer shell of the atom.

• orbiting the nucleus of the atom

• in the nucleus of the atom

• protons do not exist in the real world

Atom that has same mas number but different atomic numbers are called ______________.

• Isotope

• Isobar

• Isotone

• All the above

The symbol of Berlliyum is __________

• B

• Pe

• Be

• Br

_________ is defined as the combining capacity of an element.

• Atom

• Valency

• Proton

• Electron