diff --git a/mods/elements.js b/mods/elements.js
new file mode 100644
index 00000000..5635320c
--- /dev/null
+++ b/mods/elements.js
@@ -0,0 +1,47 @@
+addElement("boron", {
+color: "#635F62",
+category: "powders",
+state: "solid",
+
+behavior: [
+"RL:radiation%0.001",
+],
+
+
+reactions: {
+neutron: {elem2: "radiation"},
+},
+
+}),
+
+addElement("Graphite", {
+color: "#635F62",
+category: "powders",
+state: "solid",
+
+behavior: [
+"RL:radiation%2, AND RL:neutron%5",
+],
+
+}),
+
+addElement("Plutonium", {
+color: "#FFFF7F",
+category: "powders",
+state: "solid",
+
+behavior: [
+"RL:radiation%10 AND RL:proton%0.05",
+],
+
+reactions: {
+neutron: {
+elem2: "radiation",
+
+onReact: function(elem1, elem2) {
+elem1.temp = elem1.temp + 25
+},
+},
+},
+
+})