Atomic Structure, Elements, Periodic Table

Front

The atomic number identifies the number of __________.

Back

protons and electrons

Front

What is the mass number of Potassium (K) atom that has 20 neutrons?

Back

39

Front

The atom that has an atomic mass of 12 has ____________ protons.

Back

6

Front

Which of the following elements is malleable?

Back

Iron

Front

Which of the following would change the name of the element if one was added or removed from the atom?

Back

protons

Front

What is the definition of an atom?

Back

The smallest unit of matter that retains the properties of an element.

Tags

NGSS.MS-PS1-1

Front

What are neutrons?

Back

Neutral particles found in the nucleus of an atom.

Front

What is the periodic table?

Back

A tabular arrangement of elements organized by increasing atomic number.

Front

What is an element?

Back

A pure substance that cannot be broken down into simpler substances by chemical means.

Front

What is the difference between atomic mass and mass number?

Back

Atomic mass is the weighted average of an element's isotopes, while mass number is the total number of protons and neutrons in an atom.