Ask a New Question

the mass of a helium-4 atom is 6, point, 6,

Which statement correctly describes an atom of the element helium?A. An atom of helium has its valence electrons in it's first
1. 1 answer
2. asked by Yui
3. 1,966 views
An ionized helium atom has a mass of 6.6*10^-27kg and a speed of 4.4*10^5 m/s. The atom moves perpendicular to a 0.75-T magnetic
1. 2 answers
2. asked by Kelly
3. 1,745 views
The mass of a helium-4 stone is 6.65*10^-24 grams. The mass of an electron is 9.11*10^-28 grams. How many times greater is the
1. 1 answer
2. 68 views
Does every neutral helium atom in the universe have the same set of absorption lines as every other neutral helium atom (with
1. 0 answers
2. asked by Jamie
3. 535 views
Although Rutherford's model was highly successful, scientists realized that it was incomplete. For example, hydrogen atoms
1. 2 answers
2. asked by Anonymous
3. 564 views
Ideal Gas Law:PV = N k T ---> N = PV/(k T) N = 1.387*10^(29) mass of one helium atom is approximately 4*u = 6.642*10^27 kg 4u*N
1. 0 answers
2. asked by Count Iblis
3. 634 views
the mass of a helium-4 atom is 6, point, 6, 5, times, 10, to the power minus 246.65×10 −24 grams. the mass of an electron is
1. 1 answer
2. 11 views
A helium-4 atom falls from a height h into a tank of gaseous helium atoms at 300 K. What is h in meters if the temperature of
1. 16 answers
2. asked by Crow
3. 752 views
Why does the emission of an alpha particle always result in transmutation?(1 point)ResponsesThe atom is converted to helium.The
1. 1 answer
2. 14 views
An atom of helium has a mass of 6.8 x 10^-27 kg. If a room contains 9 x 10^22 atoms of helium, what is the mass of helium in the
1. 1 answer
2. asked by Dennis Mshelia Sammgbe
3. 54 views