0
True or false The number of neutrons always equals the number of protons?
Wiki User
∙ 7y ago
False. The number of electrons always equals the number of protons for an element and this is called the atomic number of an element. The number of neutrons in an element depends on other factors and varies by element and the same element can have different versions with a different number of neutrons. Each version is called an isotopes. The sum of the protons and neutrons in an atom is called the atomic weight.
Hydrogen has three isotopes with 0, 1, or 2 neutrons, with atomic weights 1,2, 3). Isotopes with 1 or 2 neutrons are extremely rare.
Carbon has four isotopes. It can have 5, 6, 7, or 8 neutrons (atomic weights 11, 12, 13, 14). We commonly refer to different isotopes by its name and weight as in carbon-11, carbon-12, carbon-13, carbon-14. Carbon-12 is common and everywhere. the others are very rare. Carbon-11 and carbon-14 are considered unstable and tend to brake down into other elements over a period of time releasing energy as it happens. This is called radioactivity.
Wiki User
∙ 7y ago
Wiki User
∙ 13y agoTrue, the positively charged protons and negatively charged electrons balance each other out.
Wiki User
∙ 13y agoFalse. The number of protons IS EQUAL to the atomic number. The number of neutrons is equal to nucleon number - proton (atomic) number.
Add your answer:
Earn +20 pts
What is the protons neutrons and electrons for 65Zn?
Protons- 30 Electrons- 30 Neutrons- 35 Zn-65 means the atomic number plus the number of neutrons equals 65. Zinc always has 30 protons; therefore, it's atomic number is 30 and it has 30 protons and electrons. The remaining number is the neutrons: 65-30= 35
The sum of the protons and neutrons in an atom equals the .?
atomic number
How many protons and neutrons are there in the nucleus of an atom that has an atomic number of 84 and a mass number of 210?
84 protons, the same as the atomic number, and (210 - 84) or 126 neutrons. The numbers of protons and neutrons together equals the mass number.
The combined number of protons and neutrons?
Number protons + number neutrons is called the mass number or the atomic mass.
How do you calculate the number of protons neutrons and electrons of an atom?
The charge of an ion can be calculated by adding up the protons and subtracting the electrons. When oxygen with 8 protons has 8 electrons it is neutral, when it has 7 electrons it is positively charged.
Is it true that the number of protons always equals the number of neutrons in all isotopes?
No. the statement is false.Number of positively charged protons always equals number of negatively charged electrons in a neutral atom
An atoms mass number equals the combination of what two things?
The mass number of an element is equal to the sum of the elements neutrons and protons.
WHAT Equals the sum of the number of neutrons and protons in an isotope?
The atomic mass equals neutrons and protons. This is true in non isotopes as well.
What is the symbol of an ion that has 20 protons 20 neutrons and 18 electrons?
The atomic number always equals to the number of protons. which in this case, is 20
What equals atomic mass minus protons?
Roughly, the number of neutrons. Note that the atomic mass is only approximately equal to the number of protons plus the number of neutrons - there is a relatively small discrepancy, due to the binding energy.
Does the number of neutrons always equal the number of protons?
No
What is the number of protons electrons and neutrons in one atom of chlorine 37?
Chlorine atoms always have 17 protons. The number of neutrons equals the mass number of the isotope named minus the number of protons: in this instance, 35 - 17 or 18.
Is there always an even number of protons and neutrons?
No
What is the protons neutrons and electrons for 65Zn?
Protons- 30 Electrons- 30 Neutrons- 35 Zn-65 means the atomic number plus the number of neutrons equals 65. Zinc always has 30 protons; therefore, it's atomic number is 30 and it has 30 protons and electrons. The remaining number is the neutrons: 65-30= 35
What is the atomic mass of a atom that has 6 neutron 6 protons and 6 electron?
Number of protons = atomic number = 6 atomic units Number of protons + neutrons = mass number = 13 atomic units
The sum of the protons and neutrons in an atom equals the .?
atomic number
What is the Mass number of helium atom that has two protons and two neutrons?
4 because the mass number equals protons plus neutrons. Which is 4.
