Chemistry

A neutral atom of an element has 2, 8, 8, 1 configuration. How many neutrons are in its isotope with mass 40?

Which of these elements is a 'p-block' element?

What is the oxidation state of Manganese in \(KMnO_4\)?

Which of the following is an alkaline earth metal?

Which element has the highest thermal conductivity?

Which element is the primary component of steel?

What is the valency of the element with atomic number 14?

In the modern periodic table, where are the non-metals located?

Which gas is released when Sodium reacts with water?

The electronic configuration of a halogen is usually:

Which metal is preserved in kerosene?

The most metallic element in Group 1 is:

Which element has the symbol 'Sn'?

How many electrons are in the outermost shell of an element with atomic number 19?

Which element is found in all organic compounds?

Which of these is the most malleable metal?

What is the mass number of an atom of Oxygen-18?

Which element has the symbol 'Hg'?

What is the chemical symbol for the element Lead?

Which of the following elements is a noble gas?