Periodic Table and Electron Configuration

How many electrons can the second shell have?

• Two

• Eight

• Five

• Three

What is the electronic configuration of Lithium?

• 2.8.8

• 2.2.2

• 2.8.5

• 2.1

Subatomic particles with a negative charge

• Electrons

• Neutrons

• Protons

• Quarks

subatomic particles found on the outermost shell & responsible for the atom's reactivity

• neutrons
• valence electrons
• isotopes
• ions

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Value representing the number of protons in an element

• Atomic Mass
• Mass Number
• Valence Electrons
• Atomic Number

Subatomic particles that are neutral in charge

• Neutrons
• Protons
• Nucleus 
• Electrons

A tiny but very dense, positively charged portion of the atom that holds most of the atomic mass

• Electron Shells
• Orbitals
• Electron Cloud
• Nucleus

Arrangement of elements organized by atomic number

• Electron Cloud 
• Periodic Table 
• Electron Configuration
• None of these

A horizontal row of elements in the periodic table

• Molecule

• Period

• Family

• Atom

What is the atomic number?

• 35

• 18

• 17

• 52

Tags

NGSS.MS-PS1-1