Question

chapter 4.1 - 4.3 vocabulary matching
element symbol
daltons law
compound
electrons
proton
isotope
mass number
name: sofia b
law of conservation of mass
atoms
chemical formula
nucleus
neutron
atomic number
a. a subatomic particle in the atoms nucleus.
b. the total number of protons and neutrons in the nucleus of a given atom
c. a substance made of two or more different elements joined together in a specific way
d. a given compound always contains elements in exactly the same proportion by mass
e. atoms with the same number of protons but different numbers of neutrons
f. a letter code for an element that is usually ont to two letters long
g. the relatively small and dense center of positive charge in an atom made up of protons and neutrons
h. negatively charged subatomic particle located in an electron cloud around the nucleus
i. the number of protons in a given atom
j. the fundamental units in which elements are composed
k. a theory established in the early 1800s used to explain the nature of materials
l. a representation of a molecule in which the symbols for elements are used to indicate the types of atoms present, and subscripts to show relative number of atoms
m. a positively charged particle located in the nucleus

Explanation:

Element symbol is a letter - code for an element (f). Dalton's Law is a theory from the early 1800s to explain material nature (k). A compound is a substance of two or more different elements joined in a specific way (c). Electrons are negatively - charged subatomic particles in an electron cloud (h). Protons are positively - charged particles in the nucleus (m). Isotopes are atoms with the same number of protons but different neutrons (e). Mass number is the total number of protons and neutrons in the nucleus (b). Law of Conservation of mass is not matched here. Atoms are the fundamental units of elements (j). Chemical formula represents a molecule with element symbols and subscripts (l). Nucleus is the small, dense, positively - charged center of an atom (g). Neutron is a subatomic particle in the nucleus (a). Atomic number is the number of protons in an atom (i).

Answer:

Element symbol: f
Dalton's Law: k
Compound: c
Electrons: h
Proton: m
Isotope: e
Mass Number: b
Law of Conservation of mass: No match
Atoms: j
Chemical Formula: l
Nucleus: g
Neutron: a
Atomic Number: i