An element having electronic configuration 1s², 2s² 2p⁶, 3s² 3p⁶, 4s¹ forms

An element having configuration 1s²2s²2p⁶3s²3p⁶4s¹ will form:

SO₂ is a:

Is $F{e}_2{O}_3$ basic or acidic in nature ?​

Identify the types of oxides:-

(i) $ZnO$

(ii) $H_{2}O$

(iii) $C{O}_2$

(iv) $NO$