Bohr and Lewis diagrams

Why do carbon, silicon, and tin all react similarly?

• They are located in the same period

• They have an even atomic number

• They have the same number of energy levels

• They are located in the same group

What do Rb, Re, and I have in common?

• family

• number of energy levels

• location of discovery

• valence electrons

What is the valence electron count of the alkaline earth metal family?

• -2

• -1

• 2

• 1

The diagram below is the bohr model of an atom. Which best describes this atom?

• it has a full outermost shell

• it has 6 valence electrons

• it has a positive charge

• it has 6 electrons

How many valence electrons are in a neutral atom of nitrogen?

• 5

• 3

• 2

• 15

which two elements have the same number of valence electrons?

• C and O

• Cl and F

• Ga and Ge

• Na and Mg

What is the correct lewis dot diagram for Boron?

• 
• 
• 
• 

The alkali metals elements are in the same family in the periodic table because they all have

• eight valence electrons

• seven valence electrons

• two valence electrons

• one valence electron

The elements F, Cl, and I are all in the same column on the periodic table. Which is the best explanation for this arrangement.

• They have the same number of energy levels

• They were all discovered at ancient times

• They were all gases at room temperature

• they have the same number of valence electrons

Which of the following is a property shared by the elements in the carbon family? (Column IV)

• The same electron configuration

• The number of valence eletrons

• An atomic mass of 12

• An atomic number of 6