What is the number of electrons in an atom that has 17 protons and 20 neutrons?
Table 1-2. Composition of Typical Atoms and Ions
Electrons | Neutrons | |
---|---|---|
Chlorine atom, 35Cl | 17 | 18 |
Chlorine atom, 37Cl | 17 | 20 |
Naturally occurring mixture of chlorine | 17 | 18 or 20 |
Uranium atom, 234U | 92 | 142 |
What is the correct name for an atom with 17 protons 21 neutrons and 17 electrons?
chlorine atoms
All atoms which contain 17 protons are called chlorine atoms. Adding or removing a proton from an atom’s nucleus changes that atom’s atomic number and creates a different element. Chlorine-35 and chlorine-37 are both isotopes of the element chlorine.
What has 17 protons and neutrons?
Chlorine
Name | Chlorine |
---|---|
Atomic Number | 17 |
Atomic Mass | 35.453 atomic mass units |
Number of Protons | 17 |
Number of Neutrons | 18 |
What atom contains 20 neutrons?
The element of potassium has the symbol K. The nucleus of an atom of potassium contains 19 protons and 20 neutrons.
What has 17 protons and 18 neutrons?
chlorine atom
Every chlorine atom has 17 protons in its nucleus. Not all atoms of chlorine have the same number of neutrons, however. Some atoms of chlorine have 18 neutrons in their nuclei.
Is chlorine a single atom?
2.8. Elements can be made of one atom, like He, or be elemental molecules, such as hydrogen (H2), oxygen (O2), chlorine (Cl2), ozone (O3), and sulfur (S8). Atoms are not drawn to scale. Some elements are monatomic, meaning they are made of a single (mon-) atom (-atomic) in their molecular form.
Why is chlorine bad?
Chlorine is a respiratory irritant, and inhaling it may cause pulmonary edema — an excessive buildup of fluid in the lungs that can lead to breathing difficulties. The gas can also cause eye and skin irritation, or even severe burns and ulcerations, according to the New York State Department of Health.
What is the number of neutrons in chlorine-37?
20 neutrons
Atoms and isotopes So although chlorine has a mass number of 35 which means it has 18 neutrons, it can also have a mass number of 37, which means it has 20 neutrons.