Arrange the measurements from least to greatest. 1.8 micrograms 1.8 grams 1.8 milligrams 1.8 kilograms

The order follows:  

Explanation:

Gram is unit which is used to expressed mass of a substance. Many other units can be used to express the mass of a substance. All the units are inter changeable.

For the given values:

Conversion factor from Gram to micro gram

So,

All other units are expressed in this standard unit of mass and then, it will be compared.

Conversion factor from Gram to mili gram

So,

Conversion factor from Gram to mili gram

So,

Hence, the order follows:  

answer: option (b) is the correct answer.

explanation:

a covalent bond is formed by sharing of electrons. whereas polarity arises due to difference in electronegativity of two atoms.

therefore, more is the electronegativity of an atom which combines with the titanium, more readily it will induce a partial positive and negative charge.

thus, out of the given options fluorine is most electronegative and has an incomplete octet. therefore, it will readily combine with titanium to share the electrons and complete its octet.  

a corroding iron, if that's one of your choices