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If an electrically neutral atom has an atomic number of 17 and an atomic mass of 36 how many electrons will it possess?
The atomic number of 17 is the number of protons in nucleus of the atoms of this element (chlorine, Cl). In a neutral atom, the numbers of protons and electrons are equal, so this atom also has 17 electrons. The mass number in this problem is a distractor, and does not contribute to solving the problem. You can use electron configuration to figure out how many electrons are in the second energy level:
1s22s22p63s23p5. You can see that there are 8 electrons in the second energy level in the 2s and 2p orbitals.
You also can look Cl up on the Periodic Table and see that it is in the 3rd period, which means that its second energy level is full (meaning 8 electrons). The last element to add to the second energy level is the noble gas neon (Ne) in the 2nd period. Neon's 2nd energy level is completely filled. So the next element, sodium (Na), starts adding electrons to the 3rd energy level, and its the first element in the 3rd period. All of the rest of the 3rd period elements continue adding electrons to the 3rd energy level s and p orbitals, until the noble gas Argon (Ar), which fills the 3rd energy level s and p orbitals.
What else can I help you with?
How many electrons in atom with atomic number of 9 and atomic mass of 19 and is electrically neutral?
Since the atom is electrically neutral, the number of electrons must be the same as the number of protons in the atom, which is the definition of atomic number. Therefore, there are 9 electrons.
When the number of electrons and protons in a sample of matter are equal the matter is?
neutral. Positive and negative charges cancel each others.
How many electrons are in an electrically neutral atom of boron?
An electrically neutral atom of boron has 5 electrons. This is because the number of electrons in a neutral atom equals the number of protons, and boron has an atomic number of 5, indicating it has 5 protons. Therefore, to maintain electrical neutrality, it also has 5 electrons.
Does number of electrons in an atom give it atomic number?
Yes, the number of electrons in an atom is equal to its atomic number. The atomic number is the number of protons in the nucleus of an atom, and since atoms are electrically neutral, they have the same number of electrons.
How many protons and electrons are in Aluminum3?
Aluminum's, or Al's, atomic number is 13. Therefore, an electrically neutral aluminum atom would have 13 protons and 13 electrons. However, Al3+ has 3 less electrons than neutral aluminum, an thus only has 10 electrons.
How do you calculate number of electrons of a given element?
You can only be sure of the number of electrons if the element is electrically neutral. If an element is electrically neutral, then the number of electrons is the same as the number of protons which is the atomic number of the element. For instance an electrically neutral atom of carbon, there are 6 electrons because there are 6 protons in a carbon atom.
How many electrons in atom with atomic number of 9 and atomic mass of 19 and is electrically neutral?
Since the atom is electrically neutral, the number of electrons must be the same as the number of protons in the atom, which is the definition of atomic number. Therefore, there are 9 electrons.
An electrically neutral atom of oxygen is likely to have this number of electrons?
Eight, the atomic number of oxygen.
How many electrons are present in a neutral barium atom?
A neutral barium atom has 56 electrons. This is because the atomic number of barium is 56, which corresponds to the number of electrons it has when it is electrically neutral.
In electrically neutral atoms the number of protons is the same as the number of .?
atomic number = number of protons = number of electrons (in a neutral atom)
When the number of electrons and protons in a sample of matter are equal the matter is?
neutral. Positive and negative charges cancel each others.
How many electrons are in an electrically neutral atom of boron?
An electrically neutral atom of boron has 5 electrons. This is because the number of electrons in a neutral atom equals the number of protons, and boron has an atomic number of 5, indicating it has 5 protons. Therefore, to maintain electrical neutrality, it also has 5 electrons.
How many total electrons are present if the atom is electrically neutral in chlorine?
A neutral chlorine atom has 17 electrons. You can know this because chlorine's atomic number is 17, which is the number of protons in the nuclei of its atoms, and a neutral atom has equal numbers of electrons and protons.
How many electrons are in atomic mass of 19?
Fluorine is the element with atomic weight closest to 19 amu. Fluorine has an atomic number of 9, so an electrically neutral fluorine atom would have 9 electrons.
Does number of electrons in an atom give it atomic number?
Yes, the number of electrons in an atom is equal to its atomic number. The atomic number is the number of protons in the nucleus of an atom, and since atoms are electrically neutral, they have the same number of electrons.
How many electrons does the atom Lr have?
Lawrencium's atomic number is 103. That means it has 103 protons. In order to be electrically neutral then, it must also have 103 electrons.
What do you notice about the atomic number and the total number of electrons in an atom of that element?
The atomic number is equal to the number of protons in an atom, which also corresponds to the number of electrons in a neutral atom. This means that the atomic number gives you the total number of electrons in a neutral atom of that element.
