Which particles are found in the nucleus of an atom?

Dmirtri Mendeleev created the first

The number of protons in an atom is the element's

A row of elements in the periodic table is called a

An element's properties can be predicted form its

Which of the following is a positively charged particle?

Which of the following is NOT a characteristic of most metals?

An element's ____________________ tells the number of protons in its nucleus.

Atoms with the same number of protons but different numbers of neutrons are called

The average mass of all the isotopes of an element are called the element's ___________________________

NONMETALS are good conductors of heat and electricity

From right to left in the periodic table, the elements are arranged in order of DECREASING atomic mass

The mass of a PROTON is about one atomic mass unit

In an atom, the number of protons is equal to the number of electrons

It is impossible to predict the properties of an element by its position in the periodic table

Heat and electricity can flow easily through metals.

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