samuella88 samuella88

12-09-2020
Chemistry

contestada

12. Which of the following species has the
least mass?
A. Electron C. Hydrogen ion
B. Helium atom D. Neutron
13. The mass number of an element whose
atom contains 13 electrons, 13 protons and
14 neutrons is
A. 13 B. 26 C. 27 D. 40
14. Which of the following elements exhibits
variable oxidation states and forms

Respuesta :

poudelbinda8 poudelbinda8

12-09-2020

12.electrons

13.13

14.aluminum has 14 neutron.

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