Atoms, Elements, P.T.

Question 1

13:5 What element am I?

Accepted Answer

Indium

Question 2

The reaction of metal with oxygen to form rust is called...

Accepted Answer

corrosion.

Question 3

Today we use the atomic mass to order atoms in the Periodic Table.

Accepted Answer

False

Question 4

Mendeleev arranged his periodic table by using element's

Accepted Answer

increasing atomic mass

Question 5

I am brittle and a semi-conductor. I am most likely in what group of elements?

Accepted Answer

Metalloids

Question 6

Marie Curie helped discover the spontaneous emission of an atom's particles that she called...

Accepted Answer

radioactivity

Question 7

Who discovered the nucleus during his experiments with gold foil?

Accepted Answer

Rutherford

Question 8

Mendeleev noticed elements in similar groups had similar...

Accepted Answer

properties

Question 9

John Dalton stated that atoms could be broken into smaller pieces.

Accepted Answer

False

Question 10

An atom with a Atomic Mass of 39 and an atomic # of 19 has how many electrons?

Accepted Answer

19

Question 11

The most reactive group of metals in the Periodic Table is the...

Accepted Answer

Alkali

Question 12

How are protons and neutrons similar?

Accepted Answer

Class discussion!, Pay attention :), You guys will rock this test!, No points awarded here.

Question 13

The 2 most common alkaline Earth metals are...

Accepted Answer

Ca and Mg

Question 14

Group: 15 Period: 9

Accepted Answer

doesn't exist

Question 15

The sum of an atoms proton and neutrons in the nucleus is expressed by the....

Accepted Answer

mass number, atomic mass

Question 16

Elements close together on the periodic table have similar... (choose the best)

Accepted Answer

properties

Question 17

What can be predicted about an element by its location in the periodic table?

Accepted Answer

its properties

Question 18

Due to their properties, most metals are best kept stored in sealed containers.

Accepted Answer

False

Question 19

An element with 107 electrons is...

Accepted Answer

Bohrium

Question 20

If a mass number goes from 58 to 54, what type of radiation has occurred?

Accepted Answer

Alpha

Question 21

An element's reactivity is what type of property?

Accepted Answer

chemical

Question 22

Which scientist discovered the nucleus using and experiment with gold foil?

Accepted Answer

Rutherford

Question 23

Measuring an element's half life can be useful in...

Accepted Answer

dating fossils.

Question 24

A physical property of elements that can be drawn into a wire is that they are....

Accepted Answer

ductile

Question 25

Electrons are found in specific orbits in the...

Accepted Answer

electron cloud

Question 26

Element's have a specific.............. that consists of one or two letters.

Accepted Answer

Chemical symbol

Question 27

I am a vertical (up and and down) column of elements. I am a ......

Accepted Answer

family/group (same thing)

Question 28

The positively charged particle in an atom is the

Accepted Answer

proton

Question 29

I am an element in a very reactive family of metals. I am probably in the ............. family.

Accepted Answer

Alkali metals

Question 30

The modern periodic table is arranged using an element's...

Accepted Answer

atomic number

Question 31

I am a subatomic particle with no charge, found in an atom's nucleus. I am a...

Accepted Answer

neutron

Question 32

Another name for a group in the periodic table is period.

Accepted Answer

False

Question 33

The least reactive elements are in this family.

Accepted Answer

Noble gas family

Question 34

An element with the same number of protons but a differing number of neutrons is a(n)...

Accepted Answer

isotope.

Atoms, Elements, P.T.

Questions 34

Atoms, Elements, P.T.

Questions 34