Chemistry
Practice Chemistry MCQs from the Science syllabus.
The elements with atomic numbers 58 to 71 are known as:
What happens to the metallic character of elements as we move from left to right across a period?
Identify the element with electronic configuration: 2, 8, 8, 2.
Which property decreases down a group in the periodic table?
Elements of group 17 are also called halogens because:
Which element has the electronic configuration \(1s^2 2s^2 2p^6 3s^2 3p^1\)?
Which of the following atoms has the highest first ionization potential?
The number of neutrons in the nucleus of an atom with atomic number 'Z' and mass number 'A' is:
Which element follows the 'diagonal relationship' with Magnesium?
What is the maximum number of electrons in the 4th shell (N shell)?
Which element has the highest electron affinity among the halogens?
Transition elements are found in which block of the periodic table?
What is the effective nuclear charge for the valence electron of a Sodium atom?
The size of an anion is always _______ than its parent atom.
Which element has the unique property of catenation to the highest extent?
What is the total number of elements in the 6th period?
Which element is used in 'galvanization' to prevent rusting of iron?