Question 7 The distinguishing electron is in the same type of subshell for which

Question

Question 7

The distinguishing electron is in the same type of subshell for which of the following pairs of elements?

77Ir and 20Ca

Question 8

Which of the following statements concerning the three major temperature scales is incorrect?

Kelvin temperatures always have positive values.

Question 9

A temperature of 373 on the Celsius scale is equivalent to

25 K

Question 10

How many subshells are present in the third electron shell?

1

Question 11

Which element/classification pair is incorrectly matched?
ElementClassification

Ne noble gas

Question 12

Density is an easy way to distinguish between gold (density: approx. 19 g/cm3), fool's gold (density: approx. 4.5 g/cm3), and sand (density: approx. 2.5 g/cm3). If a large golden rock has a mass of 252 g and a volume of 56 cm3, which type of mineral is it?

17Cl and 30Zn

Explanation / Answer

51Sb and 16S

6

ce transition metal

646 K

fools gold

The freezing point of water has a lower numerical value on the Kelvin scale than on the Fahrenheit scale.

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