Metals Answers

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Metals are used in many products because of the characteristic properties that most metals share. Which properties of the metal tungsten make it useful in the thin, glowing filaments of light bulbs?

Tungsten is electrically conductive, ductile, and opaque.

Tungsten is ductile, is malleable, and has a high luster.

Tungsten is ductile, has a high melting point, and is electrically conductive.

Tungsten has a high luster, has a high melting point, and is silver in color.

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Based on its location on the periodic table, which metal is likely to be less reactive than rubidium and more reactive than calcium?

potassium (K)

cesium (Cs)

magnesium (Mg)

titanium (Ti)

Metals are used in many products because of the characteristic properties that most metals have. Which product requires the high luster of metals in order to work?

mirrors

pots and pans

food wrap

circuit boards

Atoms of elements at the top of a group on the periodic table are smaller than the atoms of elements at the bottom of the group. How does this help explain the difference in the reactivity of metals within a group?

The valence electrons of the larger atoms are farther from the nucleus and are easier to remove, so the metals near the top are more reactive than those at the bottom.

The valence electrons of the larger atoms are farther from the nucleus and are harder to remove, so the metals near the bottom are more reactive than those at the top.

The valence electrons of the larger atoms are farther from the nucleus and are harder to remove, so the metals near the top are more reactive than those at the bottom.

The valence electrons of the larger atoms are farther from the nucleus and are easier to remove, so the metals near the bottom are more reactive than those at the top.

Which statement correctly compares an atom of an alkali metal with an atom of the alkaline earth metal next to it on the periodic table?

The alkali metal atom forms a +1 ion, while the alkaline earth metal atom forms a +2 ion.

The alkali metal atom forms a +2 ion, while the alkaline earth metal atom forms a +1 ion.

The alkali metal atom has one less shell of electrons than the atom of the alkaline earth metal.

The alkali metal atom has one more shell of electrons than the atom of the alkaline earth metal.

Which element is most likely to bend without breaking?

carbon (C)

iodine (I)

silicon (Si)

cobalt (Co)

An atom of element X has one more shell of electrons than an atom of beryllium, but it has one less valence electron than beryllium. Which element is element X?

sodium (Na)

boron (B)

magnesium (Mg)

lithium (Li)

Elements are organized on the periodic table based on their properties. Which statement correctly predicts and explains the chemical reactivity of two different metals?

Barium (Ba) is less reactive than calcium (Ca) because the valence electrons in calcium atoms are farther from the nuclei and harder to remove.

Strontium (Sr) is more reactive than magnesium (Mg) because the valence electrons in strontium atoms are farther from the nuclei and harder to remove.

Rubidium (Rb) is more reactive than sodium (Na) because the valence electrons in sodium atoms are closer to the nuclei and easier to remove.

Lithium (Li) is less reactive than potassium (K) because the valence electrons in lithium atoms are closer to the nuclei and harder to remove.

Which property of metals allows aluminum to be flattened into thin sheets of aluminum foil?

shininess

malleability

brittleness

hardness

Each year, the science club puts on a science show for the students in the elementary school. Luis is planning demonstrations to show properties of metals. For one property, he decides to use a ball of pizza dough and a rolling pin.Which property of metals is Luis most likely going to demonstrate using these materials

luster

opacity

conductivity

malleability

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