Physical science chpt 4 new

How many valence electrons do the transition metals have?

What is another name for the Group 1 elements?

Uranium is classified as what?

What is electron dot notation?

Which family of mostly nonmetals is the most reactive?

Which of the four is not one of the three main kinds of elements on the periodic table?

Whose element symbols are the closet to what we use today?

Which of the following qualities is not a property of all metals?

What is another name for the group 15 elements?

Which major group of elements are used as semiconductors?

What is the weighted average of the masses of all natural isotopes of the element called?

Why does alchemy hold some importance in science today?

Which of the following qualities is not a property of all metals?

The two rows of elements below the rest of the periodic table are the semimetals.

An elements chemical and physical properties are determined by its valence electrons.

Most transition metals have one or two valence electrons.

What is the difference between a period and a family/group?

Who discovered groups of three similar elements called triads?

Who demonstrated that combustion requires oxygen?

possess four to eight valence electrons

Where are non-metals found on the periodic table?

___________ used letters to represent each element and subscripts to represent numbers of atoms

What is a substance made of only one kind of atom called?

What is the name given to a horizontal row of the periodic table called?

Which determines the identity of an atom?

What is a family on the periodic table?

Most elements on the periodic table are?

Which type of element is highly conductive both thermally and electrically?

What is another name for the group 18 elements?

organized elements with similar characteristics in columns like the modern periodic table

Which family of elements is the most nonreactive?

How many valence electrons do the Alkaline Earth Metals have?

Most metals are _______ at room Temperature.

Neutral elements in the same family have similar properties because they have the same?

_____________ first recognized groups of three elements with similar properties.

Which type of element fits this description? Brittle solids with metalic luster

Elements with more protons and electrons almost always have larger atomic radii than those with less.

Alkiline-earth metals are slightly more reactive than alkali metals.

What was the unique feature of Mendeleev's classification of the elements?

Alchemist believed in Aristotle's 5 elements.

The unique feature of Moseley's table of elements was that he?

What are the elements in Group 2 called?

Who developed the law of octaves?

What is electronegativity?

How does the atomic radius of elements change from left to right across the periodic table?

Which type of element fits this description? ductile, malleable, and lustrous

Which include almost 80% of the elements?

Which of the following would Aristotle recognize as an element?

There are actually thousands of elements.

Groups 13-16 are considered what