Bohr Model and Valence Electrons

What are valence electrons

• The outer most electrons

• The inner most electrons

• The 2nd and 3rd electron to be added to the orbital

• The electrons that are pulled off due to frcition

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

How many Valence electrons are there?

• 4

• 3

• 2

• 1

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which atom has 4 protons 4 neutrons and 2 electrons

• 
• 
• 
• 

Tags

NGSS.HS-PS1-1

There are 6 protons and 10 electrons. The charge is

• C ⁺⁴

• C ^-4

• C ⁺²

• C ^-2

There are 2 protons and 2 electrons. What is the charge?

• He ⁺¹

• He ⁺²

• He

• He ^-1

Tags

NGSS.HS-PS1-2

Rows on the period table are called _____ while columns are called _____.

• groups, families
• groups, periods
• periods, groups
• families, groups

What group does this element belong to?

• Group 1: Alkali metals
• Group 18: Noble Gases
• Group 2: Alkaline-Earth Metals
• Group 17: Halogens

Tags

NGSS.HS-PS1-1

How many valence electrons?

• 2
• 3
• 5
• 10

Tags

NGSS.HS-PS1-1

What's a valence electron?

• electrons in the second energy level
• electrons in the outermost energy level
• the atomic number
• electrons in the first level

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

The innermost energy level has a maximum of how many electrons?

• 1

• 2

• 6

• 8