The periodic table and elemental quiz 3

How many valence electrons does magnesium have?

• 6

• 12

• 2

• 10

How many protons, neutrons, and electrons does a neutral chlorine atom have?

• 17, 17, 17

• 17,19,17

• 19, 17, 17

• 17, 19, 17

What are valence electrons?

• electrons in the outermost energy level

• electrons in the innermost energy level

• positively charged ions

• energy used for attraction in a shell

How many valence electrons does elements in group 16 have?

• 16

• 1

• 6

• 0

What is an ion?

• a positively charged atom

• a negatively charged atom

• a neutral charged atom

• both a and b

What is a cation?

• a negatively charged ion

• an ion with many charges

• a positively charged ion

What is this a representation of?

• Lewis Dot Structure

• Valence Shell

• Electron Cloud

• Bohr Model

What defines the octet rule?

• Contains element symbol and valence electrons

• atoms of main-group elements tend to combine in such a way that each atom has eight electrons in its valence shell, giving it the same electronic configuration as a noble gas.

• The electrons in the outermost energy level of an atom that influence how an element will react with other substances

The majority of the elements in the periodic table are

• nonmetals

• metals

• metalloids

The horizontal rows of the periodic table are known as

• periods

• series

• groups