Table of Contents
- 1 What element has 53 protons 74 neutrons?
- 2 What element has 53 protons 74 neutrons and 54 electrons?
- 3 What element has 53 protons and 70 neutrons?
- 4 How do you write iodine isotope with 74 neutrons?
- 5 How many neutrons are in 74?
- 6 What element has a mass number of 74?
- 7 Which element has 54 protons?
- 8 What is the size of protons neutrons and electrons?
- 9 How do protons neutrons and electrons compare?
What element has 53 protons 74 neutrons?
iodine
The most common, stable form of iodine has an atomic number of 53 (protons) and an atomic weight of 127 (53 protons plus 74 neutrons). Because its nucleus has the “correct” number of neutrons, it is stable and is not radioactive.
What element has 53 protons 74 neutrons and 54 electrons?
Solution. The atomic number of iodine (53) tells us that a neutral iodine atom contains 53 protons in its nucleus and 53 electrons outside its nucleus. Because the sum of the numbers of protons and neutrons equals the mass number, 127, the number of neutrons is 74 (127 – 53 = 74).
Which of the following represents an atom that has 53 protons 53 electrons and 72 neutrons?
Iodine 125 is the only other radioisotope of iodine used in radiotherapy. Iodine 125 (I-125) is the isotope of iodine whose nucleus consists of 53 protons and 72 neutrons. It is an electron-disrupting radioisotope in Tellure 125 (Te-125) with a half-life of 59.4 days. As iodine 123 is a gamma ray emitter.
What element has 53 protons and 70 neutrons?
Isotopes of Iodine
| Isotope: | Content of Nucleus: |
|---|---|
| Iodine-123 | 53 protons, 70 neutrons |
| Iodine-124 | 53 protons, 71 neutrons |
| Iodine-125 | 53 protons, 72 neutrons |
| Iodine-128 | 53 protons, 75 neutrons |
How do you write iodine isotope with 74 neutrons?
Hence, the isotopic symbol for iodine isotope with 74 neutrons is 12753I 53 127 I .
How many protons does an ion with 74 electrons and a charge of +4 contain?
What is its charge? Pt has atomic number 78, so it has 78 protons. With 74 electrons, it’s lost 4 electrons & must have a charge of +4.
How many neutrons are in 74?
The atomic number of tungsten is 74, so a tungsten atom has 74 protons. Mass number = number of protons + number of neutrons= 184. So number of neutrons = relative atomic mass – number of protons = 184 – 74 = 110.
What element has a mass number of 74?
Tungsten
The elements of the periodic table sorted by atomic mass
| Atomic Mass | Name chemical element | number |
|---|---|---|
| 183.84 | Tungsten | 74 |
| 186.207 | Rhenium | 75 |
| 190.23 | Osmium | 76 |
| 192.217 | Iridium | 77 |
What is the mass number of an iodine atom with 74 neutrons?
For example, a typical iodine atom has an atomic mass of 126.904 – 53 protons and 74 neutrons. An isotope of this would be Iodine-131, with 53 protons and 78 neutrons. This isotope has an mass number of 131.
Which element has 54 protons?
Xenon has atomic number 54; that is, its nucleus contains 54 protons. At standard temperature and pressure, pure xenon gas has a density of 5.761 kg/m 3, about 4.5 times the density of the Earth’s atmosphere at sea level, 1.217 kg/m 3.
What is the size of protons neutrons and electrons?
Size of a NeutronAnd Proton A Neutron and Proton are the same size which is 10 metres. -15 Size Of An Electron An electron is about 10 metres -18 Nucleus and Atomic Diametre The nucleus has a diameter 10,000 times smaller than the atom. Protons and electrons carry charges of equal magnitude, but opposite charge.
What is the number of neutrons in an element?
The atomic number of the element equals the number of protons. Calculating the number of neutrons then becomes atomic mass of the isotope minus the atomic number of the element equals the number of neutrons. For uranium-235, atomic number 92, the number of neutrons is 235-92=143, or 143 neutrons.
How do protons neutrons and electrons compare?
When you compare the masses of electrons, protons, and neutrons, what you find is that electrons have an extremely small mass, compared to either protons or neutrons. On the other hand, the masses of protons and neutrons are fairly similar, although technically, the mass of a neutron is slightly larger than the mass of a proton.