Level 2 Valence Electrons

Which model represents the most reactive atom?

• 
• 
• 
• 

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

What element contains 7 protons and 5 valence electrons?

• Boron

• Vanadium

• Nitrogen

• Lithium

Tags

NGSS.HS-PS1-1

Which statement is NOT accurate describing the element krypton?

• The element has 36 protons

• The element has 48 neutrons

• The element has 6 valence electrons

• The element has properties similar to neon

Tags

NGSS.HS-PS1-1

How many valence electrons in Oxygen?

• 5

• 6

• 7

• 8

• 2
• 5
• 10
• 15

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Aluminum is in group 13 of the periodic table.

• 3
• 13
• 4
• 14

Tags

NGSS.HS-PS1-1

Phosphorous is in group 15 of the periodic table.

• 15
• 16
• 5
• 6

Tags

NGSS.HS-PS1-1

How many valence electrons does Chlorine have?

• 17

• 9

• 8

• 7

A group of students examines a Bohr model of an atom with 8 valence electrons. What conclusion can the students make about the chemical reactivity of the element?

• The element is extremely reactive because the outer energy level is full

• The element is nonreactive because the outer energy level is full

• The element is somewhat reactive because the outer energy level is full

• Additional information is necessary to determine reactivity

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Valence Electrons determine an element's _____________.

• Reactivity
• Location
• Identity
• Color

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2