Bohr and Lewis Dot

Is this a correct dot diagram for magnesium (Mg)

• Yes

• No

Tags

NGSS.MS-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.MS-PS1-1

How many dots would a Lewis Dot structure of Helium have?

• 1

• 2

• 8

• 0

?

• Boron

• Carbon

• Nitrogen

• Lithium

Tags

NGSS.MS-PS1-1

___________ simplify the Bohr Model by showing only the outer valence electrons used for bonding.

• Lewis Dot Diagrams

• Bohr Models

• Electron Clouds

• Periodic Tables

John is studying chemistry and he comes across a dot diagram for magnesium (Mg). He believes it's correct. Is he right?

• true

• false

Tags

NGSS.MS-PS1-1

John is studying chemistry and he comes across an element in the periodic table. He wants to know how many valence electrons does this element have?

• 2

• 3

• 4

• 5

John is studying chemistry and he came across an element. He found that the element has how many valence electrons?

• 2

• 4

• 6

• 8

Tags

NGSS.MS-PS1-1

In a chemistry class, the teacher drew a dot diagram on the board and claimed it was for fluorine (F). Is this statement true?

• true

• false

Tags

NGSS.MS-PS1-1

What is a Lewis Dot Structure?

• It shows all of the particles in the atom.

• Contains protons and neutrons

• Only shows the element symbol and it's outer most electron shell

• Contains protons and electrons