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Lithium has an atomic number of 3.
Lithium's Atomic Mass is 6.9.
The atomic number refers to the number of protons in the nucleus of an element. As elements are electronically neutral the atomic number also refers to the number of electrons in a normal atom of that element.
The atomic mass is an average and can be said to refer to the combined mass of the protons and neutrons in the nucleus (protons and neutrons both having an atomic mass of 1).
Lithium, therefore, has 3 protons, 3 electrons and 4 neutrons (on average).
Lithium is in group 1 which means it is an alkali metal.
Being in group 1 also means that Lithium has only one electron in its outer shell.
Alkali metals are highly reactive because they only need to get rid of one electron in an ionic bond in order to have a full outer shell. As one travels down the Periodic Table the number of electron shells increase and so too does the distance an outer electron is from the nucleus. This increase in distance means the nucleus' hold on the outer electrons is diminished and thus the element will give up its outer electrons easier. This, in turn makes the alkali metals further down the table more reactive than those higher up.
Alkali metals are so called because when they react with water they form an alkali. Lithium reacting with water will form lithium hydroxide.
Lithium is a metal with a relatively low density that floats on water and will react violently with water and discolour rapidly in air.
What else can I help you with?
What element has the proton of 15?
The element with a proton number of 15 is Phosphorus; P
What subatomic particle is related the atomic number of an element?
protons, no. of protons is equal to the atomic number of an element.
Which element has the smallest number of proton in its atom?
The element with one proton per atom is hydrogen.
What is the relationship of the proton number to the elements identity?
The proton number, or atomic number, is the number of protons in an atom's nucleus, and it determines the element's identity. Each element has a unique atomic number, so elements are defined by the number of protons they possess.
How many electrons in an element with one proton?
The number of PROTONs and the number of ELECTRONs are always equal in a neutral atom. Therefore an element with one PROTON will have one ELECTRON and that element will be called Hydrogen.
Atomic number of lithuim?
Lithium is a metal element. atomic number of it is 3.
Write out atomic number for lithuim?
Lithium is a metal element. Atomic number of it is 1.
What is the mass number for lithuim?
Lithium is a metal element. Atomic mass of it is 7.
What element has the proton of 15?
The element with a proton number of 15 is Phosphorus; P
What subatomic particle is related the atomic number of an element?
protons, no. of protons is equal to the atomic number of an element.
Which element has the smallest number of proton in the atom?
The element with one proton per atom is hydrogen.
Which element has the smallest number of proton in its atom?
The element with one proton per atom is hydrogen.
What could be the proton number of an element that has three unpaired electrons in each of its atoms?
The proton number of an element is equal to its atomic number. If an element has three unpaired electrons in each of its atoms, it means that it has three unpaired electrons in its outermost shell, indicating that it belongs to group 13 of the periodic table. Therefore, the proton number of this element would be 13, which corresponds to the element aluminum.
What is the relationship of the proton number to the elements identity?
The proton number, or atomic number, is the number of protons in an atom's nucleus, and it determines the element's identity. Each element has a unique atomic number, so elements are defined by the number of protons they possess.
The element with a proton number 12 has similar chemical properties to the element with the proton number?
It has similar properties to the element with proton number 20, which is calcium.
The atomic number of an element is the number of which subatomic particle?
Proton
What is an atom called if it loses a proton?
the number of protons in an atom is what determines which element the atom is. So if an atom "lost" a proton, it would become another element entirely.
