Subtract number of protons (=atomic number) 3 from the total number of protons AND neutrons ( p+n = mass number) 7, leaves the number of neutrons 4
7-3=4
The number of neutrons in a lithium (Li) atom is typically 4. This can be calculated by subtracting the atomic number of lithium (3) from its Atomic Mass (7).
Lithium-9 has exactly 3 protons, 3 electrons, and 6 neutrons. To Find the number of protons just look on your periodic table, the number usually above the element on the table or the number in bold. (3) Finding the number of neutrons is simply the number preceeding the name (9) minus the number of protons (3).
The number of protons will always be 3 in each Li atom, and either 3 or 4 neutrons, depending on the Li atom's isotope. 6Li has 3 protons, while 7Li has 4. All other isotopes of Lithium are unstable.
The atomic number of lithium (Li) is 3. The atomic weight of Li is 6.941 amu, and the molar mass 6.941 grams per mole. See the Web Links to the left of this answer for a periodic table with more information about this element!
The number of neutrons in any element is equal to mass number - atomic number. So,number of neutrons in cobalt is = 58 - 27 = 32. therefore, number of neutrons in cobalt is 32.
The lithium ion is essentially the same as the lithium atom, except it has lost 1 electrons. The number of protons and neutrons remain the same. Thus, the lithium ion, Li+ has 3 neutrons, just like the lithium atom.
Li-6 has 3 neutrons and Li-7 has 4 neutrons.
Li-6 has 3 neutrons and Li-7 has 4 neutrons.
Lithium-9 has exactly 3 protons, 3 electrons, and 6 neutrons. To Find the number of protons just look on your periodic table, the number usually above the element on the table or the number in bold. (3) Finding the number of neutrons is simply the number preceeding the name (9) minus the number of protons (3).
7Li or lithium-7.The mass number of an isotope is the sum of the protons and neutrons in its atomic nuclei. The atomic number of Li is 3, so lithium-7 would have 3 protons and four neutrons.
The number of protons will always be 3 in each Li atom, and either 3 or 4 neutrons, depending on the Li atom's isotope. 6Li has 3 protons, while 7Li has 4. All other isotopes of Lithium are unstable.
There are 4 neutrons in a lithium-7 atom. Lithium, which has atomic number 3, has 3 protons in its nucleus. If its atomic number is 3 (which is the number of protons in its nucleus) and its mass number is 7, we can find the number of neutrons by subtracting the atomic number from the mass number. In this case, 7 minus 3 equals 4.
The most frequent isotope of lithium has 4 neutrons.
The element with 7 neutrons and 3 electrons is lithium. It has an atomic number of 3, which corresponds to the number of protons and electrons in a neutral atom.
The atomic number of lithium (Li) is 3. The atomic weight of Li is 6.941 amu, and the molar mass 6.941 grams per mole. See the Web Links to the left of this answer for a periodic table with more information about this element!
A lithium atom typically has 3 protons, 4 neutrons, and 3 electrons.
The atomic mass of Lithium is 6.941. Its has 3 protons and the most common has 4 neutrons.
Symbol: LiAtomic Number: 3Atomic Mass: 6.941 amuMelting Point: 180.54 °C (453.69 K, 356.972 °F)Boiling Point: 1347.0 °C (1620.15 K, 2456.6 °F)Number of Protons/Electrons: 3Number of Neutrons: 4Classification: Alkali MetalCrystal Structure: CubicDensity @ 293 K: 0.53 g/cm3Color: silvery