Sovi.AI - AI Math Tutor

Scan to solve math questions
ENFRDEESJAZH-CNZH-TW

QUESTION IMAGE

check all of the terms that apply to selenium. list of terms with check…

Question

check all of the terms that apply to selenium.
list of terms with checkboxes: transition metal, nonmetal, noble gas, metalloid, metal, main group element, inner transition metal, halogen, alkaline earth element, alkali metal

Explanation:

Brief Explanations
  1. Identify Selenium's position and properties: Selenium (Se) is in Group 16 (chalcogens), Period 4 of the periodic table.
  • Nonmetal: Selenium is a nonmetal (lacks metallic properties like luster, conductivity in pure form, etc.).
  • Main group element: Group 16 elements are main group elements (s - and p - block elements; Selenium is in the p - block).
  • Let's analyze other terms:
  • Alkali metal: Group 1, not applicable.
  • Alkaline earth metal: Group 2, not applicable.
  • Halogen: Group 17, not applicable.
  • Inner transition metal: f - block (lanthanides/actinides), not applicable.
  • Metal: Selenium is a nonmetal, so no.
  • Metalloid: Selenium is a nonmetal (some sources debate, but generally classified as nonmetal), so no.
  • Noble gas: Group 18, no.
  • Transition metal: d - block, no.
  • Inner transition metal: f - block, no.
  1. So the applicable terms are "nonmetal" and "main group element". But looking at the options, let's check again:
  • Nonmetal: Yes, Se is a nonmetal.
  • Main group element: Yes, as it's in the p - block (Group 16).
  • Wait, also, is there a mistake? Wait, Selenium is sometimes considered a metalloid? No, most periodic tables classify Se as a nonmetal. Wait, let's confirm:
  • Nonmetal: Correct.
  • Main group element: Correct (Group 16 is main group).
  • Wait, the options given: the checkboxes are "nonmetal", "main group element", and let's re - evaluate. Wait, the original question's options: the checkboxes are (from left to right? Wait the image shows: transition metal, nonmetal, noble gas, metalloid, metal, main group element, inner transition metal, halogen, alkaline earth element, alkali metal.

So:

  • Nonmetal: Check (Se is nonmetal).
  • Main group element: Check (Group 16 is main group).

Wait, but maybe I made a mistake. Wait, Selenium is in Group 16, Period 4. Main group elements are s and p block. Selenium is p - block, so main group. Nonmetal: yes. Are there others? Let's see:

  • Metalloid: Some sources say Se is a metalloid, but most common classification is nonmetal. But let's check standard classifications. For example, on the periodic table, Se is a nonmetal (like sulfur, oxygen). So:

So the applicable terms are "nonmetal" and "main group element". But let's check the options again. Wait the user's image: the checkboxes are: transition metal, nonmetal, noble gas, metalloid, metal, main group element, inner transition metal, halogen, alkaline earth element, alkali metal.
So:

  • Nonmetal: ✔️
  • Main group element: ✔️

Wait, but maybe the question has a typo? Or maybe I missed. Wait, Selenium is also a chalcogen, but that's not an option. So among the given options, "nonmetal" and "main group element" apply. But let's confirm each:

  • Alkali metal: No (Group 1)
  • Alkaline earth metal: No (Group 2)
  • Halogen: No (Group 17)
  • Inner transition metal: No (f - block)
  • Main group element: Yes (p - block, Group 16)
  • Metal: No (nonmetal)
  • Metalloid: No (nonmetal, though some debate)
  • Noble gas: No (Group 18)
  • Nonmetal: Yes
  • Transition metal: No (d - block)

So the correct checkboxes are "nonmetal" and "main group element". But maybe the question expects "nonmetal" and "main group element". Wait, but let's check again. Wait, maybe I made a mistake. Let's check Selenium's properties:…

Answer:

The terms that apply to selenium are:

  • nonmetal (check the checkbox for "nonmetal")
  • main group element (check the checkbox for "main group element")

(Note: If there was a mistake and Se is considered a metalloid by the source, then "metalloid" would also apply, but standard classification is nonmetal.)