Zadanie 9
Wzorowane na: Chemistry HL Paper 1A, May 2026, TZ2, pytanie 9. Treść, dane i kontekst są zmienione; sprawdzane umiejętności, format i punktacja jak w oryginale.
Darmowe konto pozwoli wrócić do niego później.
Polecenie
Which electrostatic attraction holds the two atoms together in a molecule of hydrogen, H2?
A. Between the two nuclei
B. Between the two electrons of the shared pair
C. Between neighbouring hydrogen molecules
D. Between each nucleus and the shared pair of electrons
Sprawdź rozwiązanieUkryj rozwiązanieKlucz CKE i punktacja
Odpowiedź z klucza
D ✔
«a covalent bond is the electrostatic attraction between the shared pair of electrons and the positively charged nuclei of both atoms; the nuclei repel each other and so do the two electrons, and attractions between molecules are intermolecular forces, not the bond»
Schemat punktowania
One mark for the correct option; no partial credit.