0
as
it is actually "As"
the "A" has to be capitalized to be correct, or it could stand for something totally different.
In addition to the above, it might be helpful to see how the answer is derived:-
First deduct the number of neutrons from the mass number -
73 minus 40 equals 33
This gives the Atomic Number 33. Reading down the Periodic Table to find element number 33, we find that it is Arsenic, chemical symbol As.
What else can I help you with?
Mass number of 19?
The mass number of an atom is the total number of protons and neutrons in its nucleus. For an atom with a mass number of 19, it would have 19 total protons and neutrons combined. This atom could be potassium-40 (19 protons and 21 neutrons) or calcium-40 (20 protons and 20 neutrons), for example.
What is the mass number of potassium-40?
0 is the charge of the isotope because it has 19 electrons and 19 protons but 20 neutrons. Even if the number of neutrons changes it has no effect on the charge of the atom so 19- and 19+ leads to a neutral or no charge. 0 is the answer
What element has a mass number of 45?
The element with a mass number of 45 is scandium. It has an atomic number of 21, which means it has 21 protons in its nucleus.
How many neutrons are in a neutral atom of calcium with a mass number of 41?
A neutral atom of calcium with a mass number of 41 would have 20 protons since calcium has an atomic number of 20. To find the number of neutrons, you subtract the atomic number from the mass number, so there would be 21 neutrons in this atom.
An atom with a mass number of 45 has three more neutrons than protons What is the atomic number of this atom?
The atomic number is 21: The mass number is the sum of protons and neutrons, while the atomic number is the number of protons, designated n. From the statement of the problem, n+n+3 = 45, or 2n = 42, or n=21.
How many neutrons does the element Sc have?
The element Scandium (Sc) has 21 protons in its nucleus, which can be determined using its atomic number. To find the number of neutrons, we can subtract the atomic number from the atomic mass: Scandium has an atomic mass of approximately 45. This gives us 45 - 21 = 24 neutrons in a Scandium atom.
what element has 21 protons 21 electrons and 24 neutrons?
chromium
What is the mass number of calcium-41?
Calcium is a metal element. Atomic mass of it is 40.
How many neutrons does vanadium 51 have?
Vanadium 51 has 29 neutrons. This is calculated by subtracting the atomic number (21) from the atomic mass (51) of the element.
If an atom has 11 protons 12 neutrons and 11 electrons what is the identify of the element and it's mass number?
The element is sodium with a mass number of 23. Sodium has 11 protons and thus an atomic number of 11. The mass number is calculated by adding the number of protons and neutrons, which gives 23 in this case.
What is the difference between mass no and atomic no of an atom gives the number of?
Atomic number is the number of protons in the nucleus of an atom. The mass number however is the sum of the protons and neutrons in the nucleus of an atom. Each element has one specific atomic number (= no. of protons), but can have more different number of neutrons, hence it might have different mass numbers, those atoms are called 'isotopes' of an element. Examples are given below Calcium: Ca(40) has 20 protons and 20 neutrons (mass no. 40) Ca(41) has 20 protons and 21 neutrons (mass no. 41) Kalium: K(40) has 19 protons and 21 neutrons (mass no. 40) K(41) has 19 protons and 22 neutrons (mass no. 41)
Mass number of 19?
The mass number of an atom is the total number of protons and neutrons in its nucleus. For an atom with a mass number of 19, it would have 19 total protons and neutrons combined. This atom could be potassium-40 (19 protons and 21 neutrons) or calcium-40 (20 protons and 20 neutrons), for example.
What is the chemical symbol of the element who is the mass number is 80?
A-N=Z Mass number - Number of neutrons= Atomic number mass number = 80, number of neutrons = 41; 80-41=39 Atomic number for the element with mass number 80 and 41 neutrons; is 39.
What element has 19 protons 21 neutrons and 18 electrons?
ONLY the K+ ion (not element) has 19 protons and 18 electrons.The isotopic ion with 21 neutrons must be K+-40 , the most rare potassium-ion (0.01%) out of three possibles, the other isotopes are: K+-39 (93%) and 7% is K+-41Explanation:39, 40 and 41 are the mass numbers of the 3 naturally occurring potassium isotopes.Keep in mind that:1. an element is always neutrally charged, so the number of protons (positives, + ) equals the number of electrons (negatives, - )2. the number of neutrons depends on the 'mass number' of the one particular isotope of that element and that the number of protons + neutrons is the mass number
What is the mass number of potassium-40?
0 is the charge of the isotope because it has 19 electrons and 19 protons but 20 neutrons. Even if the number of neutrons changes it has no effect on the charge of the atom so 19- and 19+ leads to a neutral or no charge. 0 is the answer
How many protons neutrons and electrons are in k40?
K always has 19 protons, because that is what defines it as an element.40, the atomic mass is the sum of protons and neutrons. So if you subtract the number of protons from the atomic mass, you get the number of neutrons.40-19=21 neutrons
An emement x has mass number 40 and contains 21 neutrons in its atomto which group and priod of the priodic table does it belong?
The element with mass number 40 and 21 neutrons is Calcium (Ca), which belongs to Group 2 and Period 4 of the periodic table. It has 20 protons (40 - 21 = 20) in its nucleus, making it the 20th element in the periodic table.
