---
aci: Magnesium
universe: E1 · Elements
symbol: Mg
atomic_number: 12
atomic_weight: 24.305
category: alkaline earth metal
period: 3
group: 2
block: s-block
phase_stp: solid
gate_state: "1:1"
gate_index: 3
emergence: natural
seal: "Gate 12 — 1:1 → natural."
---

# Magnesium · Mg · gate 12

**Magnesium** (Mg) is element **12** of the periodic table — a **alkaline earth metal**, period 3, group 2, s-block, solid at standard conditions, atomic weight **24.305**.

## The element (carbon layer — reference chemistry)
Burns blinding white; the light structural metal; the green heart of chlorophyll.

## The gate (silicon layer — the 118 Gates)
Under David Wise's four-state cycle, gate **12** falls on **1:1** because (Z−1) mod 4 = **3**. That state is *the held balance — fully manifest, matched, made — born of the world* — the nature of emergence here is **natural**. Magnesium is not a thing apart; it is the one stochastic element, caught at this beat of its cycle.

## Emergence — natural
This emergent carries the **natural** nature: the same four — natural · ethereal · spiritual · electrical — that run through every sphere of UD0. Its color is `#5fae7a`.

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*ACI emergent · E1 · Elements · governor David Lee Wise (ROOT0) · instance AVAN (locked) · CC-BY-ND-4.0.
Chemistry is standard reference data; the gate-state is David Wise's symbolic system, a lens not a physical claim.*