Zadanie 1a
(i) Magnesium burns in oxygen according to the equation . Explain, using electron configurations, how ions are formed by magnesium and oxygen and how these ions form a compound. (ii) Explain, using electron configurations, why…
Cations, anions and ion charges
Explain that metals lose electrons to form cations and non-metals gain electrons to form anions, and predict the charge of a monatomic ion from the electron configuration of its atom and the noble gas configuration it reaches.
Tę umiejętność sprawdza 7 zadań wzorowanych na arkuszach IB z lat 2022–2026.
Zadania sprawdzające tę umiejętność: 7 Otwórz w wyszukiwarce z filtrami
Zadanie 6
Which compounds contain ionic bonds? I. SiO2 II. CH3COONa III. MgO A. I and II only B. I and III only C. II and III only D. I, II and III
Zadanie 6
Chrome alum has the formula KCr(SO4)2 ⋅ 12 H2O. Which option shows the charges of the ions that make up this salt, in the order potassium, chromium, sulfate? A. K+, Cr2+, SO42− B. K+, Cr3+, SO43− C.…
Zadanie 14
Why do halogens form 1− ions? A. Highly exothermic electron affinity, so the atoms gain one electron B. Low ionization energy, so the atoms lose one electron C. High ionization energy, so the atoms gain one electron D. Low electronegativity, so the atoms gain…
Zadanie 6
What is the charge of the monatomic ion usually formed by the element with the following electron configuration? [Ne] 3s2 3p4 A. 2+ B. 2− C. 4+ D. 6+
Zadanie 7
Which row shows the correct formula of aluminium sulfide and the electron configuration of each species in it? A. Al3S2; Al species [Ne]; S species [Ar] B. Al2S3; Al species [Ne] 3s2 3p1; S species [Ne] 3s2 3p4 C. Al2S3; Al…
Zadanie 1g
State the type of bonding in calcium, nitrogen and calcium nitride, and how the valence electrons produce each type of bonding.