chapter 6 gen chem

although chemical properties obey the periodic law, its impossible to predict physical properties of elements based on their location in the Periodic table

false

All of the non metals on the periodic table are gasses

false

the transition elements consist of those that are found in block d of the periodic table

False

elements in the same family tend to have the same number if valence electrons

true

the radius of an atom is defined as half the distance btwn the niclei of two adjacent or bounded or bounded atoms of element

true

the octet rule states that atoms will gain, lose, or share electrons to achieve a complete set of 8 valence electrons

true

Element in group 17 are classified as halogens

True

element in group 2 are classified alkali metals

False (group 1 is alkali metals and group 2 is alkali-earth metals

When an atom loses electrons its radius gets smaller

true because there are now fewer electrons for the protons to pull towards the nucleus and will result in a stronger pull of the electrons towards the nucleus

the electronegativity of elements increase from left to right and top to bottom

false because electronegativity increases as you move from left to right across a period and decreases as you move down a group.

An atom that gain an electron will form a positive ion

false (The atom that gains an electron becomes a negative ion)

the same amount of energy is required to remove each electron sequentially from an atom

false