Intro to the periodic table

Front

What is the atomic number of an element?

Back

The atomic number is the number of protons in the nucleus of an atom, which determines the element's identity.

Front

What are periods in the periodic table?

Back

Periods are the horizontal rows in the periodic table, indicating the number of electron shells an element has.

Front

What are groups (or families) in the periodic table?

Back

Groups are the vertical columns in the periodic table, indicating elements that have similar chemical properties.

Front

How is atomic mass calculated?

Back

Atomic mass is calculated by adding the number of protons and neutrons in an atom's nucleus.

Front

What is the symbol for Nickel?

Back

The symbol for Nickel is Ni.

Front

What is the atomic number of Nickel?

Back

The atomic number of Nickel is 28.

Front

What is the atomic mass of Bromine?

Back

The atomic mass of Bromine is approximately 79.904.

Front

How many protons does the element with atomic number 7 have?

Back

The element with atomic number 7 has 7 protons.

Front

What is the position of Bromine in the periodic table?

Back

Bromine (Br) is in period 4 and group 17.

Front

What is the difference between protons and neutrons?

Back

Protons are positively charged particles found in the nucleus, while neutrons are neutral particles that also reside in the nucleus.