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Atoms, Ions, and Molecules Flashcards | StudBud
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Atoms, Ions, and Molecules
Atoms, Ions, and Molecules
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Biology Quiz on basics of Chemistry (Section 2.1)
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Answers
1
How do ions form?
Atoms gain or lose electrons.
Two atoms share electrons.
Atoms form covalent bonds.
Atoms combine to make a larger atom.
2
What is the negatively charged particle found in an atom called?
neutrons
prions
electrons
protons
3
The smallest basic unit of matter is the
atom.
cell.
compound.
molecule.
4
Which particle determines the properties of an element?
neutrons
protons
quarks
electrons
5
Atoms connected by covalent bonds share
carbon and oxygen
ionic compounds
pairs of electrons
hydrogen ions
6
How does an ionic bond form?
Electrons are exchanged between atoms.
Atoms share electrons.
Positive and negative ions attract
Two atoms combine as one.
7
What is the name of this molecule?
carbon monoxide
carbon dioxide
dioxygen carbide
oxygen carbon
8
Which phrase best describes atoms?
positively charged particles
smallest basic units of matter
single-celled organism
parts of a nucleus
9
What gas is this??
hydrogen molecule
hydride ion
hydrogen gas
Hydrogen element
10
What is a compound?
a molecule of two oxygen atoms
two atoms of a single element bonded together
atoms of different elements bonded in certain ratios
separate atoms of multiple elements in varying ratios
11
An ion is formed when an atom gains or loses
bonds
protons
neutrons
electrons
12
Which of the following cannot be broken down by ordinary chemical means?
bond
element
compound
molecule
13
What is an example of an element?
Steel
Gold
Kryptonium
Neon
14
NaCl is...
Sodium chloride
Sulfur chloride
Nadium chloride
Nitrogen ammonium chloride
15
Atoms in molecules share pairs of electrons when they make
hydrogen bonds
ionic bonds
covalent bonds
specific heat
16
What distinguishes one element from another?
The shape.
The number of neutrons.
The number of electrons.
The number of protons.
17
How does an ion become negatively charged?
It loses electrons.
It gains electrons.
