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Atoms, Ions, and Molecules Flashcards | StudBud

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Atoms, Ions, and Molecules

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Biology Quiz on basics of Chemistry (Section 2.1)

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Questions 14

Answers

1
What is a compound?
separate atoms of multiple elements in varying ratios
atoms of different elements bonded in certain ratios
two atoms of a single element bonded together
a molecule of two oxygen atoms
2
Atoms in molecules share pairs of electrons when they make
specific heat
covalent bonds
ionic bonds
hydrogen bonds
3
What is the negatively charged particle found in an atom called?
electrons
neutrons
prions
protons
4
How do ions form?
Two atoms share electrons.
Atoms combine to make a larger atom.
Atoms form covalent bonds.
Atoms gain or lose electrons.
5
Atoms connected by covalent bonds share
carbon and oxygen
pairs of electrons
ionic compounds
hydrogen ions
6
The smallest basic unit of matter is the
compound.
molecule.
atom.
cell.
7
What is an example of an element?
Neon
Steel
Gold
Kryptonium
8
What distinguishes one element from another?
The number of electrons.
The number of neutrons.
The number of protons.
The shape.
9
Which of the following cannot be broken down by ordinary chemical means?
molecule
compound
element
bond
10
Which phrase best describes atoms?
smallest basic units of matter
positively charged particles
single-celled organism
parts of a nucleus
11
An ion is formed when an atom gains or loses
bonds
electrons
neutrons
protons
12
How does an ionic bond form?
Two atoms combine as one.
Electrons are exchanged between atoms.
Positive and negative ions attract
Atoms share electrons.
13
Which particle determines the properties of an element?
electrons
neutrons
quarks
protons
14
How does an ion become negatively charged?
It loses electrons.
It gains electrons.