When thinking about orbitals, we are often given an orbital vision which ( even if it is not spelled out ) is heavily influenced by this Hartree – Fock approximation, which is one way to reduce the complexities of molecular orbital theory.

When they struck atoms in the glass wall, they excited their orbital electrons to higher energy levels, causing them to fluoresce.

When the orbital eccentricities of cubewanos and plutinos are compared, it can be seen that the cubewanos form a clear ' belt ' outside Neptune's orbit, whereas the plutinos approach, or even cross Neptune's orbit.

When atomic orbitals interact, the resulting molecular orbital can be of three types: bonding, antibonding, or nonbonding.

When all densities are multiplied by 4, orbits are the same ; gravitational forces are multiplied by 16 and accelerations by 4, velocities are doubled and orbital periods are halved.

When Pluto was discovered 19 years later, its mean distance of 39. 48 AU and orbital period of 248 Earth years were close to Ketakar's prediction ( Pluto in fact has a 2: 3 resonance with Neptune ).

When an X-ray photon collides with an atom, the atom may absorb the energy of the photon and boost an electron to a higher orbital level or if the photon is very energetic, it may knock an electron from the atom altogether, causing the atom to ionize.

When they run out of thruster fuel, the satellites are at the end of their service life as they are no longer able to keep in their allocated orbital position.

When a molecule absorbs a quantum of energy that corresponds to a transition from one molecular orbital to another molecular orbital, the resulting electronic excited state is also properly described as an exciton.

When the binary encountered Neptune, it interacted in such a way that orbital energy was transferred from Triton to its companion ; the latter was expelled, while Triton became bound to Neptune.

When each planet reaches certain values of precession, orbital resonances may cause very large, chaotic changes in obliquity.

When a planet is closer to the Sun it moves faster than when it is further away, so exact determination of the date and time of greatest elongation requires a much more complicated analysis of orbital mechanics.

When the spacecraft has reached its destination orbit, its orbital speed ( and hence its orbital energy ) must be increased again in order to change the elliptic orbit to the larger circular one.

When a molecule cannot be represented by the standard tools of valence bond theory ( promotion, hybridisation, orbital overlap, sigma and π bond formation ) because no single structure predicted by VB can account for all the properties of the molecule, one invokes the concept of resonance.

When excited, an electron moves to a higher energy level / orbital.

When electrons collide with molecules of air in the gap, they excite their orbital electrons to higher energy levels.

When Deke Slayton was withdrawn on medical grounds from Project Mercury's second manned orbital flight ( to be titled Delta 7 ), Carpenter was assigned to replace him.

When a classical particle is weakly coupled to a radiation field, so that the radiative damping can be neglected, it will emit radiation in a pattern which repeats itself every orbital period.

When NHL play resumed for 2005 – 06, Sundin was sidelined in the first game of the season when he was struck in the face with a puck, narrowly missing his eye, but breaking his orbital bone.

When DNAse liberates nucleotides from dsDNA, the bases are no longer stacked as they are in dsDNA, so that orbital overlap is minimized and UV absorbance increases.

When eccentricity is negligible ( the most favourable case for orbital stability ), this becomes

When I show up he will know you are a good wife to have told him about it ''.

When the Know-nothings get control, it will read, All men are created equal except Negroes and foreigners and Catholics.

When the reactionary response is thus bolstered by an intellectual defense, the characteristics of that defense are explicable only in terms of the basic attitudes of unanalyzed reaction.

When combined with the metaphysical notion that pure forms of this universe are best appreciated when least embodied in a material substratum, it becomes clear that while earth will be dross on a scale of material-formal ratios, celestial bodies will be of a subtle, quickened, ethereal existence, in whose embodiment pure form will be the dominant component and matter will be absent or remain subsidiary.

She used to tell me, `` When I stand there and look at the flag blowing this way and that way, I have the wonderful, safe feeling that Americans are protected no matter which way the wind blows ''.

When we consider the disorganized state of the world community, and the legacy of predispositions adversely directed against all who are identified as Jews, it is obvious that the struggle for the minds and muscles of men needs to be prosecuted with increasing vigor and skill.

When these fields are surveyed together, important patterns of relationship emerge indicating a vast community of reciprocal influence, a continuity of thought and expression including many traditions, primarily literary, religious, and philosophical, but frequently including contact with the fine arts and even, to some extent, with science.

When different colors are used, she is just as likely to color trees purple, hair green, etc..

When finally the two bedraggled men reach their friend's home, Voltaire's fears are once again aroused.

`` When are you to leave ''??

When the roof blocks are all in place, the final rows of wall blocks are mortared into position.

When the aid operations are reorganized the Peace Corps should remain a semi-autonomous, functional unit.

When the budget goes to trustees for approval it is the president's budget, to which his faith and credit are committed ; ;

When they have 4 to 6 leaves and are thrifty little plants, it's time to set them out where they are to remain.

When aircraft are no longer helpless on airfields, they are no longer vulnerable to Aj.

When more than two figures are separated by subtraction symbols the subtraction must be carried out from the left to right if the result is to be correct.

When they're on, the top edges are planed even with the sheer batten.

When painting, Mason's physical eyes are half-closed, while his mind's eye is wide open, and this circumstance accounts in part for the impression he wishes to convey.

When improvements are recommended in working conditions -- such as lighting, rest rooms, eating facilities, air-conditioning -- do you try to set a measure of their effectiveness on productivity??

When sufficiently accurate and complete measurements are available, it will be possible to set limits on the thermal and electrical characteristics of the surface and subsurface materials of the moon.

When some thirteen records of newly and recently born individuals are collated, little or no correlation between length and distribution can be detected.

When three dice are tossed repeatedly, what is the probability that the number of aces is 0 ( or 1, or 2, or 3 )??