Table of Contents
- 1 What metal has the smallest atomic number?
- 2 Which metal is lightest metal in the world?
- 3 Which non metal has the smallest atomic mass?
- 4 Which of the following elements has the lowest number of protons?
- 5 Which is the smallest element with the lowest atomic number?
- 6 How many non metals are there in the periodic table?
What metal has the smallest atomic number?
helium
Thus, helium is the smallest element, and francium is the largest.
What element has the lowest atomic number?
The element with the lowest atomic number is hydrogen. Hydrogen has an atomic number of 1, regardless of which hydrogen isotope we have.
Which alkali metal has the lowest atomic size?
lithium
So the alkali metal that will have the smallest atomic radius is lithium.
Which metal is lightest metal in the world?
Lithium is considered to be the lightest or the least dense metal on earth with a density of 0.534 g/cm3.
Which of the following elements has the lowest atomic mass?
hydrogen
Detailed Solution. The lowest atomic mass of the elements is hydrogen. The Atomic Mass is the sum of the mass of protons and neutrons present in the atom of the element. The atomic mass of hydrogen is 1 unit, Helium is 2 units, Lithium is 3 units and that of Nitrogen is 7 units.
Which metal has lowest ionization energy?
Cesium
From this trend, Cesium is said to have the lowest ionization energy and Fluorine is said to have the highest ionization energy (with the exception of Helium and Neon).
Which non metal has the smallest atomic mass?
Name: Hydrogen.
What metals can float?
Lithium, sodium, and potassium have low densities and float on water. Rubidium and Caesium are denser and sink in water. Lithium has a density of 0.53 g/cc it will float on water and any other metal with a density even slightly greater than 1 g/cc will sink.
Which is softest metal?
Caesium is considered to be the softest metal, and Lead is considered one of the softest metals. Answer 3: Mercury at room temperature is liquid (molten).
Which of the following elements has the lowest number of protons?
Atomic Number
| Name | Protons | Neutrons |
|---|---|---|
| Hydrogen | 1 | 0 |
| Helium | 2 | 2 |
| Lithium | 3 | 4 |
| Beryllium | 4 | 5 |
Which has lowest first ionization energy?
francium
The first ionization energy varies in a predictable way across the periodic table. The ionization energy decreases from top to bottom in groups, and increases from left to right across a period. Thus, helium has the largest first ionization energy, while francium has one of the lowest.
Which alkali metal has the lowest ionization energy?
Cesium – as the largest atom, the lowest ionization energy and the most reactivity with nonmetals. This can be determined by its position lowest in the alkali metal group. 4. Name two more elements with that oxidation number and explain your choice.
Which is the smallest element with the lowest atomic number?
The smallest atomic sized element that is definately a metal is Beryllium. Click to see full answer. Besides, which element has the lowest atomic number?
Which is the lightest element in the periodic table?
The lightest chemical element is Hydrogen and the heaviest is Hassium. The unity for atomic mass is gram per mol. Please note that the elements do not show their natural relation towards each other as in the Periodic system.
Are there any nonmetallic elements that are hard?
However, these elements also display some nonmetallic characteristics. While most metals are hard, lead and gallium are soft. These elements generally have lower melting and boiling points than the transition metals (with some exceptions). Tennessine (in the halogen group but may behave more like a metalloid or metal in some cases .
How many non metals are there in the periodic table?
In modern periodic table there are 22 non-metals in which there are 11 gases, 1 liquid and 10 solid. Bromine occurs in the state of liquid and hydrogen, nitrogen, oxygen, chlorine etc are found in gaseous forms.