Chapter 1, Problem 9STP

Interpretation Introduction

Interpretation:

Using the given table, the quantitative data true for the element copper is to be given.

Concept introduction:

An element is a pure substance that cannot be broken down by chemicals. It made completely of one type of atom. Copper is one such element of the periodic table. It is represented by the symbol Cu and has atomic number 29.

Answer to Problem 9STP

$1085°C$ melting point and $8.92g/c{m}^3$ density are true for quantitative data of the element copper.

Explanation of Solution

Given information:

Physical properties of three elements:

Element	Symbol	Melting Point $(°C)$	Color	Density $(g/c{m}^3)$
Sodium	Na	897.4	Grey	0.986
Phosphorous	P	44.2	White	1.83
Copper	Cu	1085	Orange	8.92

Quantitative data has numbers. It is represented in the form of counts or numbers where there is a unique numerical value associated with each data set.

In the given table, melting point and density are the quantitative data for every element whereas symbol and color are the qualitative data.

Therefore, $1085°C$ melting point and $8.92g/c{m}^3$ density are true for quantitative data of copper.

Conclusion

Hence, copper’s $1085°C$ melting point and $8.92g/c{m}^3$ density are its true quantitative data.