The Periodic Table

Identify the element : Ne

• Neon

• Nitrogen

• Nickel

• Helium

Which is an isotope for K^-39?

• Lithium ^-38

• Kalcium ^{- 40}

• Potassium ^{- 41}

• Krypton ^{- 39}

Are Halogens considered anions or cations?

• Cations

• Anions

Which group are the Alkaline Earth elements?

• Group 7

• Group 4

• Group 1

• Group 2

Which element is a noble gas?

• Argon

• Iodine

• Lithium

• Zinc

Isotope Ca⁴³ has 20 protons. How many neutrons and electrons does it have?

• 20 Electrons

  23 Neutrons

• 21 Electrons

  23 Neutrons

• 20 Electrons

  22 Neutrons

• 20 Electrons

  43 Neutrons

What is the symbol for the element silver?

• Sn

• Ag

• Si

• Au

Bromine (Br) has 35 electrons. How many protons does it have?

• 33 protons

• 36 protons

• 35 protons

• 39 protons

What is the charge on the noble gases?

• -1

• +2

• +1

• 0

Which is NOT a halogen?

• Xenon

• Fluorine

• Iodine

• Chlorine