Which of the following groups of atoms are most likely to have similar properties?

nickel (28), calcium (20), bromine (35)
aluminum (13), germanium (32), antimony (51)
oxygen (8), selenium (34), tellurium (52)

Oxygen, Selenium, Tellurium

Explanation:

Elements in the periodic table are arranged into rows and columns. Rows are called periods and columns are called groups. Elements that fall under the same group have common chemical properties.

Oxygen, selenium and tellurium all fall under the same group, which is Group VI A, or Group 16. This group is called the Oxygen group or Chalcogen Group.

fgravity=10x10=100n case 1

fgravity=30x20=600n case 2

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