periodic table

Which is a halogen?

• Helium
• Chlorine
• Oxygen
• Neptune

The atoms along the staircase are called 

• metals
• nonmetals
• metalloids
• noble gases

I am a non mental

I am in period 3

I am in group 16

I am...

• Ba

• P

• S

• Se

Look at your periodic table. Which direction does atomic number INCREASE?

• Top to bottom

• Bottom to top

The atom with the largest atomic radius in Group 18 is - 

• Ar
• He
• Kr
• Rn

The element with the smallest ionization energy in Period 6 is - 

• Rn
• Cs
• Os
• Tm

Atomic radii trends is . . . .

• generally decrease along each period of the table, from the alkali metals to the noble gases; and increase down each group.

• generally increase along each period of the table, from the alkali metals to the noble gases; and increase down each group.

• generally increase along each period of the table, from the alkali metals to the noble gases; and decrease down each group.

• generally decrease along each period of the table, from the alkali metals to the noble gases; and decrease down each group.

The group number of an element corresponds to...

• The number of electrons

• The number of valence electrons

• The number of energy levels

• The number of protons

Which is a halogen?

• Helium
• Chlorine
• Oxygen
• Neptune

The atoms along the staircase are called 

• metals
• nonmetals
• metalloids
• noble gases