diff --git a/mods/lithium.js b/mods/lithium.js
new file mode 100644
index 00000000..9bf67a60
--- /dev/null
+++ b/mods/lithium.js
@@ -0,0 +1,245 @@
+neighbors = [[-1,0],[0,-1],[1,0],[0,1]]
+
+function exposedToAir(pixel) {	
+	if(isEmpty(pixel.x+neighbors[0][0],pixel.y+neighbors[0][1],true) || isEmpty(pixel.x+neighbors[1][0],pixel.y+neighbors[1][1],true) || isEmpty(pixel.x+neighbors[2][0],pixel.y+neighbors[2][1],true) || isEmpty(pixel.x+neighbors[3][0],pixel.y+neighbors[3][1],true)) {
+		return true
+	} else {
+		return false
+	}
+}
+
+function randomChoice(array) {
+	return array[Math.floor(Math.random() * array.length)];
+}
+
+function tryTarnish(pixel,element,chance) {
+	if(exposedToAir(pixel)) {
+		if(Array.isArray(element)) {
+			if(Math.random() < chance) {
+				changePixel(pixel,randomChoice(element))
+			}
+		} else {
+			if(Math.random() < chance) {
+				changePixel(pixel,element)
+			}
+		}
+	}
+}
+
+//Non-element: Liquid ammonia
+elements.liquid_ammonia = {
+	color: "#bab6a9",
+	behavior: behaviors.LIQUID,
+	reactions: {
+		"methane": { "elem1":null, "elem2":"cyanide", "chance":0.25 },
+		"plant": { "elem1":"plant", "chance":0.05 },
+		"wheat_seed": { "elem1":"wheat", "chance":0.05 },
+		"grass": { "elem1":"grass", "chance":0.05 },
+		"grass_seed": { "elem1":"grass", "chance":0.05 },
+		"bamboo_plant": { "elem1":"bamboo", "chance":0.05 },
+		"flower_seed": { "elem1":"flower_seed", "chance":0.05 },
+		"petal": { "elem1":"flower_seed", "chance":0.05 },
+		"vine": { "elem1":"vine", "chance":0.05 },
+		"sapling": { "elem1":"tree_branch", "chance":0.05 },
+		"tree_branch": { "elem1":"tree_branch", "chance":0.05 },
+		"corn_seed": { "elem1":"corn", "chance":0.05 },
+		"root": { "elem1":"root", "chance":0.05 },
+		"dirt": { "elem1":"grass", "chance":0.05 },
+		"mud": { "elem1":"grass", "chance":0.05 },
+		"potato_seed": { "elem1":"potato", "chance":0.05 },
+		"yeast": { "elem1":"yeast", "chance":0.05 },
+		"fish": { "elem2":"meat" },
+		"frog": { "elem2":"meat" },
+	},
+	tempHigh: -78,
+	stateHigh: "ammonia",
+	category: "liquids",
+	state: "liquid",
+	hidden: true,
+	density: 681.9,
+}
+
+elements.ammonia.tempLow = -78
+elements.ammonia.stateLow = "liquid_ammonia"
+
+//Hydrogen
+//Hydrogen exists, but its solid form doesn't.
+elements.liquid_hydrogen.tempLow = -259.16
+elements.liquid_hydrogen.stateLow = "hydrogen_ice"
+
+elements.hydrogen_ice = {
+    color: "#E6E6FF",
+    behavior: behaviors.WALL,
+    density: 76,
+	category: "solids",
+    state: "solid",
+    hidden: true,
+    tempHigh: -259,
+    stateHigh: "liquid_hydrogen",
+}
+
+//Lithium
+elements.lithium = {
+    color: "#b0ab9d",
+    behavior: behaviors.WALL,
+    tick: function(pixel) {
+		tryTarnish(pixel,"lithium_oxide",0.007) //oxidation
+		if(pixel.temp >= 179) {
+			pixel.burning = true; //auto-ignition at 179*C
+			pixel.burnStart = pixelTicks; 
+		}
+	},
+	reactions: {
+		"steam": { "elem1": "hydrogen", "elem2": "lithium_hydroxide" }, //should be 2 Li(s) + 2 H2O -> 2 LiOH (aq) + H2(g) according to https://www.lenntech.com/periodic/water/lithium/lithium-and-water.htm#ixzz7LUgLrzua
+		"water": { "elem1": "hydrogen", "elem2": "lithium_hydroxide" }, //should be 2 Li(s) + 2 H2O -> 2 LiOH (aq) + H2(g) according to https://www.lenntech.com/periodic/water/lithium/lithium-and-water.htm#ixzz7LUgLrzua
+		"nitrogen": { "elem1": "lithium_nitride", "elem2": "lithium_nitride" }, //should be 6 Li + N2 → 2 Li3N according to Wikipedia
+		"liquid_nitrogen": { "elem1": "lithium_nitride", "elem2": "lithium_nitride" }, //should be 6 Li + N2 → 2 Li3N according to Wikipedia
+		"liquid_hydrogen": { "elem1": "lithium_hydride", "elem2": "lithium_hydride" }, //2 Li + H2 → 2 LiH
+		"ammonia": { "elem1": ["hydrogen",null], "elem2": "lithium_amide" }, //2Li + 2NH_3 → 2LiNH_2 + H_2
+		"liquid_ammonia": { "elem1": ["hydrogen",null], "elem2": "lithium_amide" }, //2Li + 2NH_3 → 2LiNH_2 + H_2
+	},
+    density: 534,
+    category: "solids",
+    state: "solid",
+    conduct: 0.42697,
+    hardness: 0.019,
+    tempHigh: 180,
+	burn: 20,
+	burnTime: 130,
+	fireColor: "#fc0a22",
+}
+
+elements.molten_lithium = {
+	behavior: behaviors.LIQUID,
+    tick: function(pixel) {
+		tryTarnish(pixel,"lithium_oxide",0.008) //oxidation
+	},
+	reactions: {
+		"steam": { "elem1": "hydrogen", "elem2": "lithium_hydroxide" }, //should be 2 Li(s) + 2 H2O -> 2 LiOH (aq) + H2(g) according to https://www.lenntech.com/periodic/water/lithium/lithium-and-water.htm#ixzz7LUgLrzua
+		"water": { "elem1": "hydrogen", "elem2": "lithium_hydroxide" }, //should be 2 Li(s) + 2 H2O -> 2 LiOH (aq) + H2(g) according to https://www.lenntech.com/periodic/water/lithium/lithium-and-water.htm#ixzz7LUgLrzua
+		"nitrogen": { "elem1": "lithium_nitride", "elem2": "lithium_nitride" }, //should be 6 Li + N2 → 2 Li3N according to Wikipedia
+		"liquid_nitrogen": { "elem1": "lithium_nitride", "elem2": "lithium_nitride" }, //should be 6 Li + N2 → 2 Li3N according to Wikipedia
+		"liquid_hydrogen": { "elem1": "lithium_hydride", "elem2": "lithium_hydride" }, //2 Li + H2 → 2 LiH
+		"ammonia": { "elem1": ["hydrogen",null], "elem2": "lithium_amide" }, //2Li + 2NH_3 → 2LiNH_2 + H_2
+		"liquid_ammonia": { "elem1": ["hydrogen",null], "elem2": "lithium_amide" }, //2Li + 2NH_3 → 2LiNH_2 + H_2
+	},
+	burning: true,
+	fireColor: "#fc0a22",
+	density: 512,
+}
+
+elements.lithium_oxide = {
+	color: "#eee9ec", //HRT UV-to-visible strategy again
+	behavior: behaviors.POWDER,
+	reactions: {
+		"steam": { "elem1": "lithium_hydroxide", "elem2": "lithium_hydroxide", chance: 0.03 }, //> The oxide reacts slowly
+		"water": { "elem1": "lithium_hydroxide", "elem2": "lithium_hydroxide", chance: 0.03 }, //> The oxide reacts slowly
+		"carbon_dioxide": { "elem1": null, "elem2": "lithium_carbonate" },
+	},
+	density: 2013,
+    category: "powders",
+    state: "solid",
+	hidden: true,
+	tempHigh: 1438,
+}
+
+elements.lithium_hydroxide = {
+	color: "#eeeeee",
+	behavior: behaviors.POWDER,
+	reactions: {
+		"steam": { "elem1": null, "elem2": "lithium_hydroxide_monohydrate" },
+		"water": { "elem1": null, "elem2": "lithium_hydroxide_monohydrate" },
+		"carbon_dioxide": { "elem1": "water", "elem2": [null,"lithium_carbonate"], chance: 0.5 }, //simulating 2 LiOH + CO_2 → Li_2_CO_3 + H_2_O
+	},
+	density: 1460,
+    category: "powders",
+    state: "solid",
+	hidden: true,
+	tempHigh: 462,
+}
+
+elements.lithium_hydroxide_monohydrate = {
+	color: "#e0e4e7",
+	behavior: behaviors.POWDER,
+	reactions: {
+		"carbon_dioxide": { "elem1": "water", "elem2": [null,"lithium_carbonate"], chance: 0.5 }, //should be 2x water: 2 LiOH•H_2_O + CO_2 → Li_2_CO_3 + 2 H_2_O
+	},
+	tick: function(pixel) {
+		emptyNeighborArray = [] //get empty neighbors to place split products
+		for(i=0;i<4;i++) {
+			if(isEmpty(pixel.x+neighbors[i][0],pixel.y+neighbors[i][1],true)) {
+				emptyNeighborArray.push(neighbors[i])
+			}
+		}
+		if(pixel.temp >= 100) {
+			if(emptyNeighborArray.length > 0) {
+				var placement = randomChoice(emptyNeighborArray)
+				if(isEmpty(pixel.x+placement[0],pixel.y+placement[1])) {
+					createPixel("steam",pixel.x+placement[0],pixel.y+placement[1])
+					changePixel(pixel,"lithium_hydroxide")
+				}
+			}
+		}
+	},
+	density: 1510,
+    category: "powders",
+    state: "solid",
+	hidden: true,
+}
+
+elements.lithium_carbonate = { //todo?: https://en.wikipedia.org/wiki/Lithium_carbonate
+	color: "#eeeeee",
+	behavior: behaviors.POWDER,
+	density: 2110,
+    category: "powders",
+    state: "solid",
+	hidden: true,
+	tempHigh: 723,
+}
+
+elements.lithium_nitride = {
+	color: "#eeeeee",
+	behavior: behaviors.POWDER,
+	reactions: {
+		"steam": { "elem1": "lithium_hydroxide", "elem2": "ammonia" }, //should be Li_3_N + 3 H_2_O → 3 LiOH + NH_3
+		"water": { "elem1": "lithium_hydroxide", "elem2": "ammonia" }, //should be Li_3_N + 3 H_2_O → 3 LiOH + NH_3
+		"hydrogen": { "elem1": "lithium_hydride", "elem2": "lithium_amide" }, //possibly Li_3_N + H → LiH + LiNH_2
+		"liquid_hydrogen": { "elem1": "lithium_hydride", "elem2": "lithium_amide" }, //possibly Li_3_N + H → LiH + LiNH_2
+	},
+	density: 1270,
+    category: "powders",
+    state: "solid",
+	hidden: true,
+	tempHigh: 813,
+}
+
+elements.lithium_hydride = {
+	color: "#eeeeee",
+	behavior: behaviors.POWDER,
+	reactions: { //this stuff is really f***ing reactive
+		//"water": this thing's reaction with water has f***ing hydroxide ions and we know *nothing* about the physical properties of isolated hydroxide ions
+		"ammonia": { "elem1": "hydrogen", "elem2": "lithium_amide" },
+		"liquid_ammonia": { "elem1": "hydrogen", "elem2": "lithium_amide" },
+	},
+	density: 780,
+    category: "powders",
+    state: "solid",
+	hidden: true,
+	tempHigh: 689,
+}
+
+elements.lithium_amide = {
+	color: "#eeeeee",
+	behavior: behaviors.POWDER,
+	reactions: {
+		"steam": { "elem1": "lithium_hydroxide", "elem2": "ammonia" },
+		"water": { "elem1": "lithium_hydroxide", "elem2": "ammonia" },
+	},
+	density: 1178,
+    category: "powders",
+    state: "solid",
+	hidden: true,
+	tempHigh: 375,
+}
+
+//Sodium exists
\ No newline at end of file