What has 18 protons and 22 neutrons?
Name Argon
What has 9 protons and 9 Neutrons?
Fluorine
How many electrons are in fluorine 21?
So… for the element of FLUORINE, you already know that the atomic number tells you the number of electrons. That means there are 9 electrons in a fluorine atom.
How many atoms are in lithium?
For example, lithium atoms contain 3 protons. The atomic number of lithium is 3. Any atom that has 3 protons must be a lithium atom….
| name | lithium |
|---|---|
| symbol | Li |
| protons | 3 |
| Z | 3 |
How is fluorine used today?
The element is used to make uranium hexafluoride, needed by the nuclear power industry to separate uranium isotopes. It is also used to make sulfur hexafluoride, the insulating gas for high-power electricity transformers.
Is fluorine a toothpaste?
Sodium fluoride (NaF), stannous(II) fluoride (SnF2) and sodium monofluorophosphate (Na2PO3F) are all fluorine compounds added to toothpaste, also to help prevent tooth decay. Hydrofluoric acid (HF) is used to etch glass, including most of the glass used in light bulbs.
Is fluorine essential for life?
Fluoride is considered a semi-essential element for humans: not necessary to sustain life, but contributing (within narrow limits of daily intake) to dental health and bone strength.
Can fluorine replace oxygen?
Chemically fluorine is the most electronegative element in the periodic table and can be considered as an alternative substitute to oxygen.
Is fluorine found in the human body?
Small amount of fluorine is naturally present in the water, air, plants and animals. As a result humans are exposed to fluorine through food, drinking water and breathing air. Fluorine is essential for the maintenance and solidification of our bones and prevents dental decay.
Does fluorine glow?
Fluorine is a pale yellow diatomic gas at room temperatures. Fluorine is highly toxic and corrosive. Fluorine is the 13th most abundant element on Earth, but the 24th most abundant in the universe. The mineral fluorite, or fluorspar, glows in the dark when exposed to light.
What is a weakness of fluorine?
Because it is so reactive, fluorine is difficult to store. Hydrofluoric acid (HF), for example, is so corrosive it will dissolve glass. Hydrogen fluoride is considered to be a weak acid at low concentrations, but it acts as a strong acid at high concentrations.