ch 2 part 1 vocabulary

Question 1

subdivided

sub div i dead

sub divided

Answer 1

تقسيم
section, partition, part, split, divide, share

Question 2

takes up

Answer 2

يشغل او يستغرق

Question 3

element

Answer 3

substance that cannot be broken down into simpler substances by chemical means. An element is composed of atoms that have the same atomic number, that is, each atom has the same number of protons in its nucleus as all other atoms of that elemen

Question 4

atom

Answer 4

a particle of matter that uniquely defines a chemical element

Question 5

Nucleus

noo cle yes

nuc le us

Answer 5

نواه

Question 6

orbit

Answer 6

يدور

Question 7

Isotopes

ico top

iso tope

Answer 7

النظائر

Question 8

electrone

Answer 8

negatively charged subatomic particle that can be either bound to an atom or free (not bound).
جسيم دون ذري سالب الشحنة يمكن أن يكون مرتبطًا بذرة أو حرًا (غير مرتبط).

Question 9

neutron

nit ron

neu tron

Answer 9

uncharged elementary particle that has a mass nearly equal to that of the proton and is present in all known atomic nuclei except the hydrogen nucleus

Question 10

Radioactive Atoms

radio active atoms

radioactive atoms

Answer 10

Atoms seek to be stable; so, to get to a more stable state, the atom expels energy from the nucleus in the form of a particle or ray. This process is known as radioactivity, the unstable atom is said to be a radioactive atom, and the energy that’s released is radiation
الذرات المشعة

Question 11

nuclei

noo cle i

nuc le i

Answer 11

نوى

Question 12

spontaneously

span teen ys le

spon tane ous ly

Answer 12

عفوي

Question 13

radiation

rade e yeeh shn

radi ation

Answer 13

اشعاع

Question 14

bond

band

bond

Answer 14

رابطه