8th science review - Atoms and periodic table

Look at the periodic table. Which list of elements forms a group on the periodic table?

• Li, Be, B, C, N, O, F, and Ne

• He, Ne, Ar, Kr, Xe, and Rn

• B, Si, As, Te, and At

• Sc, Ti, V, Cr, Mn, Fe, Co, Cu, Ni, and Zd

Which is NOT a property of metals?

• brittleness

• conductivity

• ductility

• luster

What are two properties that make a metal a good choice to use as wire in electronics?

• conductivity, malleability

• ductility, conductivity

• luster, malleability

• malleability, high density

The reactivity of elements __________ from right to left on the periodic table.

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Elements in the same group or family have similar _______________?

• atomic mass

• atomic weight

• chemical properties

• practical uses

Where are most nonmetals located on the periodic table?

• in the bottom row

• on the left side and in the middle

• on the right side

• in the top row

Which of the following represents the number of valence electrons on the periodic table?

• Periods

• Protons

• Groups

• Neutrons

What represents the number of energy levels for each element on the periodic table?

• Periods

• Protons

• Groups

• Neutrons

What is the mass number defined as?

• the number of protons
• the number of protons and neutrons
• the number of neutrons
• the number of protons and electrons

Which of the following are found in the nucleus?

• protons and electrons

• protons ONLY

• protons and neutrons

• Electrons only