Periodic Table and Electron Configuration

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

A negatively charged subatomic particle that exists in various energy levels outside the nucleus of an atom

• neutron

• electron

• proton

• subatomic particle

Tags

NGSS.MS-PS2-3

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

Tags

NGSS.MS-PS1-1

Match the following element to it's electron configuration

• 1s² 2s² 2p⁶ 3s² 3p⁶ 3s²

• Calcium

• 1s² 2s² 3p⁶ 3s² 3p⁵

• Chlorine

• 1s² 2s² 2p³

• Lithium

• 1s² 2s² 2p¹

• Nitrogen

• 1s² 2s¹

• Boron

Subatomic particles with a negative charge

• Electrons

• Neutrons

• Protons

• Quarks

Tags

NGSS.MS-PS2-3

Value representing the number of protons in an element

• Atomic Mass

• Mass Number

• Valence Electrons

• Atomic Number

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