stud
bud
Sign up
Log in
Home
Library
Explore
SAT
More
Ch.7.1-7.4 Atoms & Periodic Table of Elements Flashcards | StudBud
Explore
/
Ch.7.1-7.4 Atoms & Periodic Table of Elements
Ch.7.1-7.4 Atoms & Periodic Table of Elements
20 terms
·
StudBud Administration
·
889 plays
atoms elements periodic table
Flashcards
20 cards
F
Practice quiz
P
Host live
L
Questions
20
Answers
1
Fluorine, chlorine, bromine, and iodine are part of a family called
halogens.
metalloids.
noble gases.
alkali metals.
2
Which group contains the most elements?
nonmetals
transition elements
metalloids
metals
3
A material is said to be ductile if it
can be pulled out, or drawn, into a long wire.
can be hammered or rolled into flat sheets and other shapes.
is a mixture of a metal with at least one other element.
can transfer heat or electricity to another material.
4
In Ernest Rutherford's gold foil experiment, resulted in him to infer
that an atom's positive charge must be clustered in center.
that an atom consists of negative charges scattered in +
that electrons have almost no mass.
that electrons move in orbits around the nucleus of an atom.
5
The atomic number of an element is based on the
number of electrons around its core.
number of protons in its nucleus.
number of neutrons in its nucleus.
mass of its nucleus.
6
What information in the periodic table indicates the # of protons in an atom?
the element's atomic mass
the element's atomic number
the element's chemical symbol
the position of element in its column
7
Which of the following groups contains an elements important to the chemistry of life?
metalloids
metals
actinides
nonmetals
8
From an element's location in the periodic table, you can predict
its properties.
when it was discovered.
its chemical symbol.
its chemical name.
9
Which particles in atoms have a negative charge?
neutrons
protons
electrons
nuclei
10
At room temperature, more than half of the nonmetal elements are
liquids.
gases.
alloys.
solids.
11
Mendeleev created the first periodic table by arranging the elements in order of
increasing atomic mass.
increasing atomic number.
decreasing atomic mass.
increasing melting points and densities.
12
In an atom, the number of protons equals the number of
electrons.
neutrons.
nuclei.
isotopes.
13
The smallest particle that can still be considered an element is called a(n)
proton.
atom.
nucleus.
electron.
14
Which parts of the atom move around the nucleus?
electrons
atomic mass units
neutrons
protons
15
The elements that do not ordinarily form compounds are
elements in the carbon family.
halogens.
metals.
noble gases.
16
The element Potassium has the atomic # 19 and mass of 39. How many neutrons in its nucleus?
39
19
58
20
17
Which group of elements have some properties of metals and some properties of nonmetals?
noble gases
transition metals
halogens
metalloids
18
Which of these phrases best describes the general properties of metals?
dull and brittle
not easily corroded
malleable, ductile, good conductors
highly reactive
19
Which group of metals are so reactive that they are never found in nature uncombined?
alkali metals
alkaline earth metals
transition metals
lantanides
20
Which of these statements about a column of the periodic table is true?
The elements have the same atomic number.
The elements have similar characteristics.
The elements have a wide range of characteristics.
The elements have the same atomic mass.
