0
strontium or cesium
Wiki User
∙ 12y ago
Add your answer:
Earn +20 pts
What type of clocks did people make when there was no electricity or wires?
Sun dials and water clocks.
How can you tell how many neutrons are in an element?
The number of neutrons in an element is determined by subtracting the atomic number from the atomic mass number rounded to the nearest whole number. On the other hand, very few atoms are abnormal and have a different amount of neutrons than other atoms of the same element. These are called isotopes and are indicated by a number following the element symbol (eg. C-14). This is a radioactive isotope of carbon that has six protons based on the atomic number and two more neutrons than normal--8. (8+6=14). Finally, the reason that the atomic mass units end in decimals is that this is just an average weight. The isotopes can either bring this number up or down. atomic number [ 6 ] symbol [ C ] mass (atomic mass units (amu)) [ 12.01 ]
What types of energy is used to run a clock?
Most clocks run on batteries, but some have internal mechanisms that make chiming or gong sounds. These types of clocks also use batteries and mechanics.
What is the difference between clock and watch?
Clocks make noise... like alarms or chimes... watches are silent...
Who ordered Albert Einstein make the atomic bomb?
No one did; Albert Einstein did not create the atomic bomb.
What element is used to make atomic clocks?
The atom of the isotope caesium 133; the definition of second in SI is based on this atom.
Does anyone make atomic wall clocks?
Yes, there are many brands of atomic wall clocks.
What does an element's atomic mass tell about the atoms that make up that element?
Atomic Mass is the no. of protons+no. of nuetron
What is the most accurate time keeper?
AnswerAll digital clocks are perfectly accurate! A strontium atomic clock developed by scientists at the University of Colorado is supposedly more than twice as accurate as the cesium atomic clock (the old "most accurate") was.Atomic clocks are the most accurate clocks that are available to the general public. To date, the most accurate clock made is the so-called quantum logic clock, which is accurate to about one second in 3.7 billion years.
What does an element's atomic mass tell us about the atoms that make up that element?
atomic mass is the no. of protons+no. of nuetron
How accurate is The Clock?
Electric clocks that plug in the wall (not battery operated) are probably the most accurate timepieces you can buy. These clocks count the cycles of alternating current. This make it a digital like clock and the electric company adds or subtracts cycles every so often to make it exactly accurate.
What is the maximum number of covalent bonds an element with atomic number 7 can make with an element with atomic number of 16?
It can make maximum 2 covalent bonds as element of atomic number 7 has 5 valence electrons while element having 16 atomic number have 6 valence electrons.
How accurate is the electric clock?
Electric clocks that plug in the wall (not battery operated) are probably the most accurate timepieces you can buy. These clocks count the cycles of alternating current. This make it a digital like clock and the electric company adds or subtracts cycles every so often to make it exactly accurate.
What subatomic particle is related the atomic number of an element?
protons, no. of protons is equal to the atomic number of an element.
Element used to make atomic clock?
One type of atomic clock uses Rubidium.
How many protons and electrons are in element with an atomic number?
An element's atomic number is equal to the amount of protons in that element. Each atom has a different number of protons and electrons present in their make-up.
Has an atomic number of 7?
Could you please re-ask your question in a better manner, because that question does not make sense. Are you trying to ask the atomic mass of the element with the atomic number of 7? or are you just stating that there is an element with the atomic number of 7? because that is not a very good question.
