In the table below, there are descriptions of an experiment on samples of three different chemical elements. Decide whether the element is a metal nonmetal, if you can. If there is not enough information to decide, choose can't decide in the third column. element description metal or nonmetal? Element 1 is a moderately soft silvery-gray solid. A 5 cm x 5 cm square of it, only 1 mm thick, is heated with a flame at one end. The square becomes warm and starts to soften all over. O metal O nonmetal O (can't decide) 1 Element 2 is a hard silvery-grăy solid. Wires are fastened to each side of a 2 cm slab of it, and an ordinary household 9 V battery is hooked up so that it can feed electricity through the slab to an LED. The LED glows brightly. O metal O nonmetal O (can't decide) 2 Element 3 is a moderately soft silvery-gray solid. A 5 cm x 5 cm square of it, only 1 mm thick, is pressed into a dish-shaped mold under high pressure. When the press is lifted up, the sample has been crushed to a powder. O metal O nonmetal O (can't decide) 3
In the table below, there are descriptions of an experiment on samples of three different chemical elements. Decide whether the element is a metal nonmetal, if you can. If there is not enough information to decide, choose can't decide in the third column. element description metal or nonmetal? Element 1 is a moderately soft silvery-gray solid. A 5 cm x 5 cm square of it, only 1 mm thick, is heated with a flame at one end. The square becomes warm and starts to soften all over. O metal O nonmetal O (can't decide) 1 Element 2 is a hard silvery-grăy solid. Wires are fastened to each side of a 2 cm slab of it, and an ordinary household 9 V battery is hooked up so that it can feed electricity through the slab to an LED. The LED glows brightly. O metal O nonmetal O (can't decide) 2 Element 3 is a moderately soft silvery-gray solid. A 5 cm x 5 cm square of it, only 1 mm thick, is pressed into a dish-shaped mold under high pressure. When the press is lifted up, the sample has been crushed to a powder. O metal O nonmetal O (can't decide) 3
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 113CP: On October 21, 1982, the Bureau of the Mint changed the composition of pennies (see Exercise 120)....
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Transcribed Image Text:O MEASUREMENT AND MATTER
Distinguishing a metal from a nonmetal by physical properties
In the table below, there are descriptions of an experiment on samples of three different chemical elements. Decide whether the element is a metal or
nonmetal, if you can. If there is not enough information to decide, choose can't decide in the third column.
element
description
metal or nonmetal?
Element 1 is a moderately soft silvery-gray solid. A 5 cm × 5 cm square
of it, only 1 mm thick, is heated with a flame at one end. The square
O metal
O nonmetal
O (can't decide)
1
becomes warm and starts to soften all over.
Element 2 is a hard silvery-grăy solid. Wires are fastened to each side of
a 2 cm slab of it, and an ordinary household 9 V battery is hooked up so
that it can feed electricity through the slab to an LED. The LED glows
brightly.
O metal
O nonmetal
O (can't decide)
Element 3 is a moderately soft silvery-gray solid. A 5 cm x 5 cm square
of it, only 1 mm thick, is pressed into a dish-shaped mold under high
pressure. When the press is lifted up, the sample has been crushed to a
powder.
O metal
O nonmetal
3
O (can't decide)
II
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