- published: 03 Sep 2020
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A chemical bond is a lasting attraction between atoms that enables the formation of chemical compounds. The bond may result from the electrostatic force of attraction between atoms with opposite charges, or through the sharing of electrons as in the covalent bonds. The strength of chemical bonds varies considerably; there are "strong bonds" such as covalent or ionic bonds and "weak bonds" such as Dipole-dipole interaction, the London dispersion force and hydrogen bonding.
Since opposite charges attract via a simple electromagnetic force, the negatively charged electrons that are orbiting the nucleus and the positively charged protons in the nucleus attract each other. An electron positioned between two nuclei will be attracted to both of them, and the nuclei will be attracted toward electrons in this position. This attraction constitutes the chemical bond. Due to the matter wave nature of electrons and their smaller mass, they must occupy a much larger amount of volume compared with the nuclei, and this volume occupied by the electrons keeps the atomic nuclei relatively far apart, as compared with the size of the nuclei themselves. This phenomenon limits the distance between nuclei and atoms in a bond.
Bond (first name and dates unknown) was an English first-class cricketer associated with Marylebone Cricket Club (MCC) who was active in the 1800s. He is recorded in one match, totalling 8 runs with a highest score of 8 not out.
In finance, a bond is an instrument of indebtedness of the bond issuer to the holders. It is a debt security, under which the issuer owes the holders a debt and, depending on the terms of the bond, is obliged to pay them interest (the coupon) and/or to repay the principal at a later date, termed the maturity date. Interest is usually payable at fixed intervals (semiannual, annual, sometimes monthly). Very often the bond is negotiable, i.e. the ownership of the instrument can be transferred in the secondary market. This means that once the transfer agents at the bank medallion stamp the bond, it is highly liquid on the second market.
Thus a bond is a form of loan or IOU: the holder of the bond is the lender (creditor), the issuer of the bond is the borrower (debtor), and the coupon is the interest. Bonds provide the borrower with external funds to finance long-term investments, or, in the case of government bonds, to finance current expenditure. Certificates of deposit (CDs) or short term commercial paper are considered to be money market instruments and not bonds: the main difference is in the length of the term of the instrument.
Second trailer for James Bond 007: No Time To Die
Music video by Bond performing Victory. (C) 2000 Decca Music Group Limited
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Music video by Bond performing Explosive. (C) 2004 Decca Music Group Limited
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The mission that changes everything begins… No Time To Die in cinemas October 2021
“Bond, James Bond.” 007 (Sean Connery) delivers the iconic line for the first time to Sylvia Trench (Eunice Gayson) in DR. NO (1962) at Le Cercle, Les Ambassadeurs Club, London. Producer Cubby Broccoli said: “Those words against the insistent rhythm of the ‘James Bond Theme’ was not just good cinema, it became the signature which has run through all of the Bond films.”
Video oficial de bond. Disco: Born Compositor: Antonio Vivaldi
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A chemical bond is a lasting attraction between atoms that enables the formation of chemical compounds. The bond may result from the electrostatic force of attraction between atoms with opposite charges, or through the sharing of electrons as in the covalent bonds. The strength of chemical bonds varies considerably; there are "strong bonds" such as covalent or ionic bonds and "weak bonds" such as Dipole-dipole interaction, the London dispersion force and hydrogen bonding.
Since opposite charges attract via a simple electromagnetic force, the negatively charged electrons that are orbiting the nucleus and the positively charged protons in the nucleus attract each other. An electron positioned between two nuclei will be attracted to both of them, and the nuclei will be attracted toward electrons in this position. This attraction constitutes the chemical bond. Due to the matter wave nature of electrons and their smaller mass, they must occupy a much larger amount of volume compared with the nuclei, and this volume occupied by the electrons keeps the atomic nuclei relatively far apart, as compared with the size of the nuclei themselves. This phenomenon limits the distance between nuclei and atoms in a bond.
Cockburn Bruce
80 Humans
What About The Bond (4: 55)
disharmony gives way
to mute helplessness
not enough communication
too much not expressed
it's all to easy
to let go of hope
to think there's nothing worth saving
and let it all go up in smoke
what about the the bond
(Chorus:)
what about the mystical unity
what about the bond
sealed in the loving presence of the Father
dysfunction
of the institutions
that should give a frame to work in
got to find our own solutions
confusion
pressure from all sides
got to head right down the centre
in the love that will abide
what about the bond
(repeat chorus)
man and woman
made to be one flesh
nobody said it would be easy
but can we let go now and fail the test?
now you could say
life is full of moving on
but do you want the pain that's
already been spent
to all be wasted -- c'mon
what about the bond
(repeat chorus)
(Ottawa, March 28th, 1980)