Consider the Lewis electron formulas for the following four Helium has dots and a charge of Radon has dots and a charge of The lead (II) ion has dots and a charge of The lead (IV) ion has dots and a charge of а. -2 b. -4 C. +2 or 2 d. +4 or 4 е. +3 or 3 f. 8 g. 0 h. 6 i. 10

Which element labeled A-E in the periodic table below will have an ionic charge of -1? IA B C D E Select one: О а. С b. A С. Е d. D e. В Clear my choice

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Moving to another question will save this response. Question 16 The mass number of an atom is determined by the weight of O 1. neutrons and protons O 2. neutrons and electrons O 3. protons and electrons O 4. protons only 5. neutrons only A Moving to another question will save this response. AR ll

CUTICLE OIL O Microsoft W final E.A 1. G fahrenheit x 9 Learning M X O Schoology x O ch 9 key A mukilteo.schoology.com/common-assessment-delivery/start/4592487484?action on.. Bb Molar Mie O Periodic x 3-6, 6-5, & 6-6 Test 6 of 10 © 29 POSSIBLE POINTS: 2 What is the mass of a 5.521 mole sample of MgCl2? O 17.26 g O 100.7 g O 525.7 g O 256.1 g 4. 6 8 9 10 Lenovo DI 23 $ 7 4 t r e ーの づ

Predict the charge of the ion formed by each element.a. Mg                     b. N                          c. F                                d. Na

What species fi ts each description? a. a period 2 element that forms a +2 cation b. an ion from group 7A with 18 electrons c. a cation from group 1A with 36 electrons

From the following list of elements, select the elements that are likely to form a cation. Choose one or more: O A. phosphorous B. calcium C. rubidium D. lead E. scandium F. barium G. cesium H. oxygen I. chlorine O O

32. In which group do all the elements have similar chemical properties? a) P, S, Cl b) Ag, Cd, Ar c) Na, Ca, Ba d) N, P, As 33. Of the following elements, which is most likely to form a negative ion with charge 2-? a) Ва b) Са c) S d)

Which species has 54 electrons and 52 protons? SSOS 350 A nun as exism ch A. B. C. D. 128 Te ²- 52 34 Xe2+ 54 VanB 13 Xe2- 128 Te 52 2+ babiv thomagno, otsual Xtia Hv Apne nos290 Samota negyxo to lomn inuo