U1: The Periodic Table - Mastery Test

Match the following elements with their group name.

• Inert elements in group 8A

• transition metals

• Group B elements

• metalloids

• Elements with properties of both metals and non-metals

• noble gases

• Highly reactive elements in group 7A

• halogens

Select the correct answer. How does the modern periodic table arrange elements?

• by atomic mass

• by atomic number

• by number of isotopes

• by electron mass

Which of these pairs of elements have the same number of valence electrons?

• phosphorus (P) and chlorine (Cl)

• beryllium (Be) and calcium (Ca)

• chlorine (Cl) and helium (He)

• oxygen (O) and carbon (C)

Which of these elements has four total electrons in its outer p orbitals?

• barium (Ba)

• nitrogen (N)

• silicon (Si)

• sulfur (S)

Which of these elements has four valence electrons?

• hafnium (Hf)

• radon (Rn)

• silicon (Si)

• sulfur (S)

Which of these elements is unlikely to have a reaction with any element or compound?

• rubidium (Rb)

• magnesium (Mg)

• cobalt (Co)

• argon (Ar)

Which of these elements is an alkaline earth metal?

• potassium (K)

• calcium (Ca)

• chromium (Cr)

• gallium (Ga)

(a)   is a metalloid.

• vanadium (V)
• radon (Rn)
• silicon (Si)
• rubidium (Rb)

Select the correct answer. Which of the following elements is an alkali metal?

• potassium (K)

• calcium (Ca)

• chromium (Cr)

• germanium (Ge)

Select the correct answer. The periods that contain elements with electrons in s, p, d, and f orbitals are (a)  

• periods 1–3
• periods 1–4
• periods 3–5
• periods 6–7

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2