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The atom with an atomic number of 1 is Hydrogen. Hydrogen only has one electron and is very unstable because it is very close to the nucleus and has an incomplete valence shell
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What does element's atomic number represent?
The number of Protons in an atom, so Hydrogen with 1 proton has the atomic number 1.
The mass number of an atom can be equal to the atomic number.?
Yes but only if there are no neutrons, such as in hydrogen (atomic number=1, relative Atomic Mass-1)
Why are the atoms on the periodic table set up in columns What is so special about their atomic structure Why is Ne in the last column while Li in the first?
The elements were arranged according to atomic number. And atomic number is equal to the number of protons and electrons. There is a rule (octet rule), which states that for an atom to be stable, it needs 8 electrons. The First Group has one excess electron to be stable. Group 7 needs one electron to be stable. (in short... 1-1=0(stable), 7+1=8(stable)) Group 8 has 8. So it is stable, and located at the end of the table.
How many neutral atoms does atomic number 117 and atomic mass of 294 have?
1. Every atom has a unique atomic number.
Group number 1 on the periodic table is what?
Atomic number is based on protons in a atom. Hydrogen is in s block. Atomic number one is 1.Hydrogen is atomic number 1.
What Atomic Number represents?
The atomic number equals the number of protons in an atom, as well as the number of electrons in a stable, electrically neutral atom, it represents the identity of an element ,the simplest form of matter.
Atomic number of an atom is equal to the number of?
The atomic number of an atom is the number of protons in that atom. For example, the atomic number of hydrogen is 1 because one hydrogen atom have one proton.
What atomic number of an atom reveals the number of?
The atomic number of an atom is its number of protons. For instance, a hydrogen atom has an atomic number of one, meaning there is one proton in one hydrogen atom. Also, as there are the same number of protons as there are electrons in a neutral atom, the atomic number can also be thought of as the number of electrons in an atom, as long as the atom's neutral.
What is the difference between the atomic number of an atomand its mass number?
The atomic number is the number of protons in the nucleus of an atom, while the mass number is the sum of the number of protons and the number of neutrons in the nucleus. Only one stable isotope, hydrogen-1, contains no neutrons in its nucleus, so that its atomic number and mass number are both 1. All stable atoms of all other isotopes contain neutrons and therefore will have a mass number larger than their atomic numbers.
What are the atomic numbers and atomic mass?
Atomic Number :- atomic number of an element is the number of protons present in the nucleus of the atom. (since atoms are electrically neutral the number of protons in an atom is equal to the number of electrons in an atom) Atomic Mass :- atomic mass of an element is the number which tells us how many times an atom of that element is heavier than an atom of hydrogen (whose atomic weight is taken as unity [1])
What does element's atomic number represent?
The number of Protons in an atom, so Hydrogen with 1 proton has the atomic number 1.
The mass number of an atom can be equal to the atomic number.?
Yes but only if there are no neutrons, such as in hydrogen (atomic number=1, relative Atomic Mass-1)
What is the atomic number of hydrgen?
Hydrogen(H) is the smallest atom that we know of. Its atomic number is 1.
How do you calculate the number of protons in the nucleus of an atom?
The number of protons in a atom is equivalent to its atomic number. Hydrogen's atomic number is 1, there fore it has 1 proton. Coppers atomic number is 29 so it has a proton count of 29. And so on.
Why are the atoms on the periodic table set up in columns What is so special about their atomic structure Why is Ne in the last column while Li in the first?
The elements were arranged according to atomic number. And atomic number is equal to the number of protons and electrons. There is a rule (octet rule), which states that for an atom to be stable, it needs 8 electrons. The First Group has one excess electron to be stable. Group 7 needs one electron to be stable. (in short... 1-1=0(stable), 7+1=8(stable)) Group 8 has 8. So it is stable, and located at the end of the table.
What molecule would be formed from atom of sulfur with atomic number 16 and atom formed from hydrogen with atomic number 1?
H2S is formed
The atomic number 1 belongs to what atom?
Hydrogen!
