What are the 2 numbers given for each element?

What are the 2 numbers given for each element?

The number above the symbol is the atomic mass (or atomic weight). This is the total number of protons and neutrons in an atom. The number below the symbol is the atomic number and this reflects the number of protons in the nucleus of each element’s atom. Every element has a unique atomic number.

How many periods and groups are there on the periodic table?

7 periods

What are three things you learned about the periodic table?

Fun facts about the Periodic Table

• Carbon is unique in that it is known to form up to 10 million different compounds.
• Francium is the rarest element on earth.
• The only letter not in the periodic table is the letter J.
• The country Argentina is named after the element silver (symbol Ag) which is argentum in Latin.

Why do we call it periodic table?

Why is the periodic table called the periodic table? It is called the periodic table because of the way the elements are arranged. You’ll notice they’re in rows and columns. The horizontal rows (which go from left to right) are called ‘periods’ and the vertical columns (going from up to down) are called ‘groups’.

Is silica used to make silicone?

Silicone is a versatile polymer used in elastomers, oils, greases and caulks, among other materials. Its primary ingredient is silica — one of the most commonly occurring forms of sand. Here’s what you need to know about silicone production.

Is metal or ceramic better for baking?

Metal, whether it be copper, stainless steel, cast iron, or aluminum, is also better for recipes requiring very high heat. Glass or ceramic dishes can shatter if subjected to some serious heat in the oven, or when placed under the broiler, but metal can tolerate these high temperatures.

Can you use PAM to grease a Bundt pan?

Start by using a small amount of room temperature butter or shortening. Using your fingertips, spread a thin layer of the butter throughout the bottom and sides of the pan. Be sure to cover all inside surfaces of the cake or muffin pan. If you prefer, use a baking spray such as Pam.

Is it bad to bake in aluminum pans?

Aluminum is an excellent material for bakeware and is often used by professionals. Though the rumors about its toxicity persist, research has shown that the amount of aluminum that leaches into food is minimal — and, more important, that normal intake of aluminum is not harmful.