Periodic table and Atoms

The atomic number tells you what?

• number of electrons
• number of protons
• number of neutrons
• both electrons and protons in an atom.

A neutron has a charge of

• +2
• No charge
• -1
• +1

How many protons are in Beryllium?

• 4
• 9
• 5
• 2

Tags

NGSS.MS-PS1-1

A nucleus of an atom contains what two parts?

• Electrons and Protons

• Neutrons and Electrons

• Protons and Neutrons

How many neutrons does Chlorine (Cl) with an atomic number of 17 and an atomic mass of 35.

• 17

• 18

• 19

Which two subatomic particles are found in the NUCLEUS of at atom?

• protons & nuetrons
• protons & electrons
• neutrons & electrons
• electrons & protons

Which type of subatomic particles have the LEAST amount of mass?

• protons
• electrons
• neutrons
• nucleus

The periodic table is organized into columns called _______ and rows called ______.

• groups and periods

• periods and groups

• categories and periods

• categories and groups

What are the elements called in Groups 3-12 of the periodic table?

• Alkai Metals

• Transitional Metals

• Noble Gases

Electron in the outermost energy level are called?

• Valence Electron

• Valence Proton

• Valence Neutron