atoms of different elements bonded in certain ratios

Atoms, Ions, and Molecules Flashcards

1

Which phrase best describes atoms?

smallest basic units of matter
single-celled organism
parts of a nucleus
positively charged particles

2

An ion is formed when an atom gains or loses

neutrons
electrons
bonds
protons

3

Which particle determines the properties of an element?

electrons
neutrons
protons
quarks

4

How does an ion become negatively charged?

It gains electrons.
It loses electrons.

5

How do ions form?

Atoms form covalent bonds.
Atoms gain or lose electrons.
Two atoms share electrons.
Atoms combine to make a larger atom.

6

What is an example of an element?

Kryptonium
Steel
Gold
Neon

7

Atoms in share pairs of electrons when they make

molecules
ions
elements
atoms

8

Which of the following cannot be broken down by ordinary chemical means?

compound
molecule
bond
element

9

What distinguishes one element from another?

The shape.
The number of electrons.
The number of protons.
The number of neutrons.

10

What is the negatively charged particle found in an atom called?

electrons
protons
prions
neutrons

11

What is a compound?

two atoms of a single element bonded together
atoms of different elements bonded in certain ratios
separate atoms of multiple elements in varying ratios
a molecule of two oxygen atoms

12

The smallest basic unit of matter is the

compound.
molecule.
cell.
atom.

13

How does an ionic bond form?

Atoms share electrons.
Two atoms combine as one.
Ions share electrons
Electrons are exchanged between atoms.

14

The variables that DO NOT change in an experiment are called

constants/controls
observations
independent variables
dependent variables

15

What kind of atoms usually share electrons?

noble gases
metal
ions
non-metals

Atoms, Ions, and Molecules

Questions 15

Atoms, Ions, and Molecules

Questions 15