Ur answer is A
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That a particular concept- the Alcubierre Warp Drive- might actually be feasible.... the major hurdles and opportunities presented by warp mechanics research
Answer:
1.18 x 10⁵
Explanation:
3.14 x 10⁻² / 2.65 x 10⁻⁷ = 1.18 x 10⁵
When performing division, the final answer should have the same number of significant figures as the number with the smallest number of sig figs. In this case, both of the given numbers have 3 sig figs, meaning the final answer should have this many as well.
Explanation:
The fundamental particles in an atom are protons, neutrons and electrons. The given atoms are called the isotopes of magnesium. They only differ in the number of neutrons they possess.
Protons are the positively charge particles in an atom
Neutrons occupy the center of an atom with protons and they carry no charges
Electrons orbits an atom and they carry no charges.
For a neutral atom, the number of protons and electrons are the same.
Magnesium - 24
Magnesium - 25
Magnesium - 26
Magnesium is an atom on the periodic table with an atomic number of 12.
The atomic number is the number of protons in an atom.
The numbers in front of the problem given are the mass numbers.
For neutral atoms;
Number of protons = number of electrons = atomic number
Number of neutrons = Mass number - atomic number
Magnesium - 24
Protons = 12
Electrons = 12
Neutrons = 24 - 12 = 12
Magnesium - 25
Protons = 12
Electrons = 12
Neutrons = 25-12 = 13
Magnesium - 26
Protons = 12
Electrons = 12
Neutrons = 26 - 12 = 14
learn more:
Atomic numbers brainly.com/question/2057656
#learnwithBrainly
Molar Mass is the mass of a given substance, referring to the Atomic Weight of elements. Therefore, the Molar Mass of Iron (Fe) would be 55.845 gmol-1
