1 Answer. The inert gases are in fact the SMALLEST atoms of their respective Periods.
Which is the smallest atom?
Protium, the ordinary isotope of hydrogen having one proton in its nucleus and an electron revolving around it, is the smallest and lightest of all atoms.
Is the smallest atom in Period 4?
Thus, helium is the smallest element, and francium is the largest.
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Periodic Trends — Atomic and Ionic Radii.
| Sc 161 | |
| Ti 145 | |
| V 132 | |
| Cr 125 | |
| 4A | Ge 123 |
Which is the smallest period in periodic table?
The first period of the periodic table is the shortest period of the periodic table.
Which is the smallest atom in period 2?
Neon is the smallest atom in period 2. As all the atom of 2nd period have 2 shells but it have more electrons and protons so due to heigher attraction the size of neon is smallest..
What is the heaviest element known to man?
The heaviest element found in any appreciable amount in nature is uranium, atomic number 92. (The atomic number refers to the number of protons in an atom’s nucleus.) Beyond that, scientists must create new elements in accelerators, usually by smashing a beam of light atoms into a target of heavy atoms.
What is the smallest thing in the world?
Protons and neutrons can be further broken down: they’re both made up of things called “quarks.” As far as we can tell, quarks can’t be broken down into smaller components, making them the smallest things we know of.
What is the period for nitrogen?
| Nitrogen | |
|---|---|
| Period | period 2 |
| Block | p-block |
| Electron configuration | [He] 2s2 2p3 |
| Electrons per shell | 2, 5 |
Which elements 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.
What is the last element in Period 4?
The fourth period contains 18 elements beginning with potassium and ending with krypton – one element for each of the eighteen groups.
What is the longest period?
A menstrual period that lasts longer than seven days is considered a long period. Your doctor may refer to a period that lasts longer than a week as menorrhagia. You may also be diagnosed with menorrhagia if you experience unusually heavy bleeding that lasts less than a week. Five percent of women have menorrhagia.
Which is the largest period?
The sixth period is called the longest period because it has maximum 32 elements.
How many periods are called short periods?
Period number 1, 2 and 3 contain 2, 8 and 8 elements respectively. Other periods contain more than 8 elements. Hence, the first three periods are called as short periods. So, total of 3 short periods are there in Mendeleev periodic table.
Which element in Period 2 is the most active metal?
Fluorine is the most reactive of all elements, and it even attacks many oxides to replace oxygen with fluorine. Fluorine even attacks silica, one of the favored materials for transporting strong acids, and burns asbestos.
How many elements are there in second period?
The first period of the periodic table is a short one consisting of only two elements, hydrogen and helium. Lithium, atomic number 3 begins the second period, which has 8 elements. Elements with atomic numbers 4-10, which complete this period, are discussed in this section.
What element is in Period 2 Group 7?
The Group 7 elements are called the halogens. They are placed in the vertical column, second from the right, in the periodic table . Chlorine, bromine and iodine are the three common Group 7 elements.
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Properties and uses of the halogens.
| Element | Properties | Typical use |
|---|---|---|
| Iodine | Grey solid | Sterilising wounds |