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If an element has 8 protons and 8 neutrons in its nucleus and 8 electrons revolving around the nucleus What is the atomic number and atomic mass of this element?
In neutral atoms (with the same number of protons and electrons), the number of protons and electrons equal the atomic number. If our atom has 9 electrons, is neutral, and therefore has 9 protons, it is element #9: Flourine, which has an atomic mass of 19: 9 protons plus 10 neutrons.
How long after the big bang did the first hydrogen nuclei form?
Within the context of elements, Hydrogen is the most basic building block of our universe. Good old number 1 on the periodic table. It's simple structure tells us that it would've been the first element to form after the big bang. However, we can't say that it formed instantly. In the earliest stages the Universe would've been too dense and too hot for the formation of Hydrogen. If you are looking for a magic number for an assignment or something, you should be safe saying that they formed within 5 seconds.
How are monatomic anions formed from atoms in terms of protons and electrons?
Monatomic anions are formed when atoms gain one or more electrons. The number of protons in the nucleus remains the same, giving the atom a net negative charge due to having more electrons than protons.
What is a particle of atom?
Sub-atomic particle is the proper term to describe your question. We generally know atom construct from proton, neutron and electron while proton is positron and neutron. To even smaller scale, it is the Quark that is the building block of the matter.
What happens to the atom when an alpha particle is released by it?
When an alpha particle is released by an atom, the atom loses two protons and two neutrons, resulting in a different element being formed. This process is known as alpha decay.
What is the matter from which the elements were formed?
Elements are formed from atoms. Atoms are formed of protons, neutrons, and electrons (sub-atomic particles).
How are particular elements alike?
All chemical elements are formed from protons, neutrons (excepting H-1) and electrons.
What are elements and compounds made of?
1. Compounds molecules are formed from chemical elements. 2. Each element is formed from specific atoms. 3. Each atom contain protons, neutrons and electrons. 4. Protons and neutrons contain quarks and gluons.
What do the protons and neutrons form?
Atomic nucleus is formed from protons and neutrons.
What are the elements that formed the calcium?
Calcium is an element, which means that it is made up protons/electrons and neutrons. Each calcium atom contains a total of 20 protons/electrons, and 20 neutrons.
What is the 2 or more elements that make uranium?
Uranium is a chemical element and doesn't contain other elements,As all chemical elements uranium is formed from protons, neutrons and electrons.
What is a subatomic composition?
A chemical atom contain protons and neutrons (in the nucleus) and electrons; protons and neutrons are formed from quarks.
What is subatomic composition?
A chemical atom contain protons and neutrons (in the nucleus) and electrons; protons and neutrons are formed from quarks.
What particles is the atom formed of?
Atom is formed of electrons, protons and neutrons.
What is a subatomic particle with a nucleus called?
The atomic nucleus contain protons and neutrons; protons and neutrons are formed from quarks and gluons.
What atom do you build with 2 protons 2 neutrons and 2 electrons?
Helium-4 has 2 protons and 2 neutrons, and is formed both by the fusion of hydrogen in stars and in the decay of heavy radioactive elements. The neutral atom has 2 electrons.
What is the basis for all compounds?
All chemical compounds are formed from chemical elements.
