Formative 1C: Elemental Properties

Elements in the periodic table have different physical and chemical properties based on their location. The horizontal rows represent periods and the vertical columns represent groups of elements, respectively. Metals are located on the left side of the periodic table, and nonmetals are located on the right side. The metals and nonmetals are separated by a zig-zag line of metalloids. The elements arranged in the periodic table are shown. Determine if the element named is a metal, nonmetal, or metalloid.

Sodium - ​ (a)  

Nitrogen - (b)  

Germanium - (c)  

• Nonmetal
• Metalloid
• Metal
• solid
• liquid
• gas

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NGSS.MS-PS1-1

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Looking at the periodic table provided, which element is a metal that is a liquid at room temperature?

• lithium

• silicon

• mercury

• bromine

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NGSS.MS-PS1-4

Which pair of elements have the same number of valence electrons?

• boron and arsenic

• chlorine and fluorine

• phosphorus and silicon

• sodium and magnesium

Answer explanation

Remember if they are in the same group (column) then they have the same number of valance electrons.

Using the periodic table, classify these elements as metals, nonmetals, or metalloids.

• Metalloid

• He

• Nonmetal

• Si

• Metal

• K

Tags

NGSS.MS-PS1-1

Erika made a table to compare and contrast the properties of metals and nonmetals. Erika made a mistake in her table. Which best describes the mistake Erika made?

• Most metals have low melting points, and most nonmetals have high melting points.

• Most metals are poor conductors, and most nonmetals are good conductors.

• Most metals are malleable, and most nonmetals are not malleable.

• Most metals are not hard, and most nonmetals are hard.

The table shows information about the states of the elements copper, hydrogen, boron, and mercury at room temperature. An unknown substance takes the shape of its container and has a mirrorlike shininess. This unknown substance could be which element?

• hydrogen

• copper

• boron

• mercury

Tags

NGSS.MS-PS1-4

A certain element exists at room temperature as a brittle solid. When tested, it is a poor conductor of electricity. This element is most likely classified as

• a noble gas.

• a metalloid.

• a nonmetal.

• a halogen.

Which of the following is true about the states of matter for metals and nonmetals at room temperature?

• Metals are mostly liquids, while nonmetals are mostly solids and liquids.

• Metals are mostly solids, while nonmetals are mostly gases and solids.

• Nonmetals are mostly gases, while metals are mostly gases and liquids.

• Nonmetals are mostly solids, while metals are mostly solids and liquids.

What is the most important factor in determining how an atom will bond?

• 
  the number of protons the atom has

• the number of neutrons the atom has

• the number of isotopes of the atom that exist

• 
  the number of electrons in the atom's outermost energy level

Tags

NGSS.HS-PS1-1

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