What element has the largest atoms of Period 4?

Which element belongs to 4th period?

Period 4 element

Which element in Period 4 has the smallest atomic radius?

Explanation: Helium has the smallest atomic radius. This is due to trends in the periodic table, and the effective nuclear charge that holds the valence electrons close to the nucleus. Atomic radius decreases as you move across a period from left to right and decreases as you move up a group from bottom to top.

Which element in Period 4 has the most metallic properties?

Answer Expert Verified. The answer is (4) Sc. The metallic properties has the rule that from left to right, the metallic property is from high to low.

Which element is not part of period number 4?

Answer. Explanation: Palladium is a chemical element with the symbol Pd and atomic number 46, on period 5-6.

Why does Period 4 have 18 elements?

When n = 4, we find that in the orbitals 3d, 4s and 3p which are present in the outermost shells have energies in increasing order — i.e. 3p<4s<3d. … So, maximum number of electrons found in the three orbitals is 9X2 = 18. Therefore, 4th period should have 18 elements.

What element has the largest atomic radius?

Atomic radii vary in a predictable way across the periodic table. As can be seen in the figures below, the atomic radius increases from top to bottom in a group, and decreases from left to right across a period. Thus, helium is the smallest element, and francium is the largest.

What element in the second period has the largest atomic radius?

The element in the second period that has the largest atomic radius is the Lithium (Li).

Which ion has largest radius?

Explanation: The ionic radii of cations follow the same trends as atomic radii. They increase from top to bottom and from right to left in the Periodic Table. Thus, the ion with the largest radius is closest to the lower left corner of the Periodic Table, and that is the K+ ion.

What is the lightest element on earth?

Hydrogen is the lightest element. Dihydrogen, H2, is a colorless, odorless, tasteless gas.

What is the least metallic element?

Chlorine is right below fluorine, making it the element with the fifth highest metallic character. This leaves fluorine as the last element, meaning it has the lowest metallic character.

Which element in Period 2 is the most active metal?

The elements in period 2 often have the most extreme properties in their respective groups; for example, fluorine is the most reactive halogen, neon is the most inert noble gas, and lithium is the least reactive alkali metal.
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Periodic trends.

What Period 4 element has 6 valence electrons?

Oxygen is located in group 16 on the periodic table, so it has six valence electrons.

What does the period number tell you?

The period number on the Periodic table tells you the total number of orbits that the atom will have. In other words, the period number indicates the number of energy levels (or energy orbit) of an atom.

What element is in Group 2 Period 4?

The given element is calcium.